{"title":"Stormwater \u0026 NPDES","description":"\u003cp\u003eWet-weather and outfall monitoring for NPDES and MS4 programs: portable automated samplers, rain loggers, radar and submersible stage sensors, turbidity sensors, and flood monitoring systems that report by telemetry.\u003c\/p\u003e","products":[{"product_id":"oakton-t-100-field-turbidity-meter","title":"Oakton T-100 Field Turbidity Meter","description":"\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\n  \u003cstyle\u003e\n      table {\n          border-collapse: collapse;\n          width: 100%;\n      }\n\n      th,td {\n          text-align: left;\n          padding: 8px;\n      }\n\n      tr:nth-child(even) {background-color: #f2f2f2;}\n  \u003c\/style\u003e\n\n\u003cp\u003e\n  \u003c\/p\u003e\u003ctable\u003e\n    \u003ctr\u003e\n      \u003cth\u003eRange\u003c\/th\u003e\n      \u003ctd\u003e0 to 1000 NTU\u003c\/td\u003e\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n      \u003cth\u003eResolution\u003c\/th\u003e\n      \u003ctd\u003e0.01 (0 to 19.99 NTU) 0.1 (20.0 to 99.9 NTU) 1 NTU (100 to 1000 NTU)\u003c\/td\u003e\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n      \u003cth\u003eAccuracy\u003c\/th\u003e\n      \u003ctd\u003e±2% of measurement from 0 to 500 NTU\u003cbr\u003e±3% of measurement from 501 to 1000 NTU\u003c\/td\u003e\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n      \u003cth\u003eRepeatability\u003c\/th\u003e\n      \u003ctd\u003e±0.01 NTU or ±1% of measurement, whichever is greater\u003c\/td\u003e\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n      \u003cth\u003ePower\u003c\/th\u003e\n      \u003ctd\u003eFour AAA Alkaline Batteries\u003c\/td\u003e\n    \u003c\/tr\u003e\n\n    \u003ctr\u003e\n      \u003cth\u003eDimensions\u003c\/th\u003e\n      \u003ctd\u003eMeter : 2.7\" x 6.1\" x 1.8\" (6.8 x 15.5 x 4.6 cm)\u003cbr\u003eMeter with Case : 6.3\" x 13.8\" x 4.7\" (16 x 35 x 12 cm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/table\u003e\n","brand":"Oakton","offers":[{"title":"T-100 Meter Only","offer_id":40956538093758,"sku":"OAK-WD-35635-05","price":1617.0,"currency_code":"USD","in_stock":true},{"title":"T-100 Turbidity Meter Kit","offer_id":40956538126526,"sku":"OAK-WD-35635-00","price":2000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/products\/41Twcdhi5WL.jpg?v=1659479022"},{"product_id":"hanna-98703-turbidity-meter","title":"Hanna 98703 Turbidity Meter","description":"\u003cp\u003eThe Hanna HI98703 Turbidity Portable Meter is a high-accuracy, EPA-compliant handheld turbidity meter engineered for precise water quality testing in field and laboratory environments. Designed to meet or exceed EPA Method 180.1 and Standard Methods 2130 B, this rugged instrument delivers reliable turbidity measurements essential for environmental monitoring, drinking water analysis, and wastewater compliance.\u003c\/p\u003e\n\u003ch3\u003eTurbidity Specifications\u003c\/h3\u003e\n\u003cstyle\u003e\n      table {\n          border-collapse: collapse;\n          width: 100%;\n      }\n\n      th,td {\n          text-align: left;\n          padding: 8px;\n      }\n\n      tr:nth-child(even) {background-color: #f2f2f2;}\n  \u003c\/style\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRange\u003c\/th\u003e\n\u003ctd\u003e0.00 to 9.99; 10.0 to 99.9; 100 to 1000 NTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eResolution\u003c\/th\u003e\n\u003ctd\u003e0.01; 0.1; 1 NTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRange Selection\u003c\/th\u003e\n\u003ctd\u003eautomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAccuracy\u003c\/th\u003e\n\u003ctd\u003e±2% of reading plus 0.02 NTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRepeatability\u003c\/th\u003e\n\u003ctd\u003e±1% of reading or 0.02 NTU, whichever is greater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStray Light\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 0.02 NTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLight Detector\u003c\/th\u003e\n\u003ctd\u003esilicon photocell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003ctd\u003eratio nephelometric method (90° \u0026amp; 180°)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMeasuring Mode\u003c\/th\u003e\n\u003ctd\u003enormal, average, continuous\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTurbidity Standards\u003c\/th\u003e\n\u003ctd\u003e\u0026lt; 0.1, 15, 100, and 750 NTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCalibration\u003c\/th\u003e\n\u003ctd\u003etwo, three, or four-point calibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eGeneral Specifications\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eLight Source\u003c\/th\u003e\n\u003ctd\u003etungsten filament lamp \/ greater than 100,000 readings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDisplay\u003c\/th\u003e\n\u003ctd\u003e60 x 90 mm backlit LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLog Memory\u003c\/th\u003e\n\u003ctd\u003e200 records\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConnectivity\u003c\/th\u003e\n\u003ctd\u003eUSB or RS232\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnvironment\u003c\/th\u003e\n\u003ctd\u003e0 to 50°C (32 to 122°F), RH max 95% non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePower Supply\u003c\/th\u003e\n\u003ctd\u003e1.5V AA alkaline batteries (4) or AC adapter; auto-off after 15 minutes of non-use\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensions\u003c\/th\u003e\n\u003ctd\u003e224 x 87 x 77 mm (8.8 x 3.4 x 3.0”)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003ctd\u003eHI98703 is supplied with sample cuvettes and caps (5), HI98703-11 calibration cuvettes, silicone oil, cuvette wiping cloth, batteries, AC adapter, instruction manual, and rugged carrying case.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Hanna","offers":[{"title":"Default Title","offer_id":40956555821246,"sku":"72100012","price":1499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/products\/hi98703-600.jpg?v=1659465346"},{"product_id":"ysi-prosample-portable-automated-sampler-p-p-12","title":"YSI ProSample Portable Automated Sampler (P \/ P-12)","description":"\u003cp\u003eThe YSI ProSample P is a portable, battery-operated automated water sampler with a peristaltic pump and microprocessor control — ideal for discrete and composite sampling in stormwater, wastewater, and surface water monitoring programs. The \u003cstrong\u003eP-12\u003c\/strong\u003e variant adds SDI-12 connectivity for direct integration with EXO sondes and other telemetry devices.\u003c\/p\u003e\n\n\u003cp\u003eEvery unit ships with a 12V\/7.5Ah battery, two peristaltic pump tubes, USB cable, Getting Started Guide, and a 5-meter suction hose with screw connection and sinker weight. \u003cstrong\u003eBattery charger not included\u003c\/strong\u003e — order separately below or see the Chargers \u0026amp; Power section. Sample bottle sets with distributor arm are also sold separately.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eComposite Kit\u003c\/strong\u003e variants include the ProSample P, a 26L PE composite bottle, a CEC-compliant battery charger, and a strainer — everything needed to start collecting composite samples immediately. The \u003cstrong\u003eDiscrete Kit\u003c\/strong\u003e variant adds 24×1L bottles and a distributor arm for discrete sampling programs.\u003c\/p\u003e\n\n\u003cp\u003eNeed cables, replacement parts, or accessories? Browse our \u003ca href=\"https:\/\/envirotechonline.com\/collections\/discrete-composite-samplers\" title=\"Discrete \u0026amp; Composite Samplers\"\u003eDiscrete \u0026amp; Composite Samplers collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 1px solid lightgray; text-align: center; width: 100%; padding: 12px;\"\u003e\u003ca style=\"font-size: 15px;\" href=\"https:\/\/www.geotechenv.com\/pdf\/water_quality\/ysi_prosample.pdf\" target=\"_blank\"\u003eSPECS\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid lightgray; text-align: center; width: 100%; padding: 12px;\"\u003e\u003ca style=\"font-size: 15px;\" href=\"https:\/\/www.geotechenv.com\/Manuals\/YSI_Manuals\/YSI_ProSample_Manual.pdf\" target=\"_blank\"\u003eMANUAL\u003c\/a\u003e\u003c\/div\u003e","brand":"YSI - Xylem Inc.","offers":[{"title":"ProSample P — Instrument Only","offer_id":48106163732670,"sku":"630141","price":4123.0,"currency_code":"USD","in_stock":true},{"title":"ProSample P-12 — Instrument Only (SDI-12)","offer_id":48106163765438,"sku":"630111","price":5083.0,"currency_code":"USD","in_stock":true},{"title":"ProSample P Kit — Composite (26L bottle + charger + strainer)","offer_id":48106163798206,"sku":"630156","price":5111.0,"currency_code":"USD","in_stock":true},{"title":"ProSample P Kit — Discrete (24×1L bottles + distributor arm + charger + strainer)","offer_id":48106163830974,"sku":"630157","price":5415.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/630141-630111-630140-630110-ProSample-P-P12-PM-PM12-Studio.jpg?v=1783623219"},{"product_id":"ysi-prosample-mini-portable-automated-sampler-pm-pm-12","title":"YSI ProSample Mini Portable Automated Sampler (PM \/ PM-12)","description":"\u003cp\u003eThe YSI ProSample PM is a compact mini portable sampler — same peristaltic pump and microprocessor control as the ProSample P, but with a built-in 10L PE composite bottle, making it ideal for deployment in tight spaces like manholes. The \u003cstrong\u003ePM-12\u003c\/strong\u003e variant adds SDI-12 connectivity for direct integration with EXO sondes and other data loggers.\u003c\/p\u003e\n\n\u003cp\u003eEvery unit ships with a 10L PE composite bottle with lid, 12V\/7.5Ah battery, two peristaltic pump tubes, USB cable, Getting Started Guide, and a 5-meter suction hose with screw connection and sinker weight. \u003cstrong\u003eBattery charger not included\u003c\/strong\u003e — order separately in our \u003ca href=\"https:\/\/envirotechonline.com\/collections\/discrete-composite-samplers\" title=\"Discrete \u0026amp; Composite Samplers\"\u003eDiscrete \u0026amp; Composite Samplers collection\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ePM Kit\u003c\/strong\u003e variant includes the ProSample PM, CEC-compliant battery charger, and a strainer.\u003c\/p\u003e\n\n\u003cdiv style=\"border: 1px solid lightgray; text-align: center; width: 100%; padding: 12px;\"\u003e\u003ca style=\"font-size: 15px;\" href=\"https:\/\/www.geotechenv.com\/pdf\/water_quality\/ysi_prosample.pdf\" target=\"_blank\"\u003eSPECS\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid lightgray; text-align: center; width: 100%; padding: 12px;\"\u003e\u003ca style=\"font-size: 15px;\" href=\"https:\/\/www.geotechenv.com\/Manuals\/YSI_Manuals\/YSI_ProSample_Manual.pdf\" target=\"_blank\"\u003eMANUAL\u003c\/a\u003e\u003c\/div\u003e","brand":"YSI - Xylem Inc.","offers":[{"title":"ProSample PM — with 10L Composite Bottle","offer_id":48106173595838,"sku":"630140","price":4218.0,"currency_code":"USD","in_stock":true},{"title":"ProSample PM-12 — with 10L Composite Bottle (SDI-12)","offer_id":48106173628606,"sku":"630110","price":4712.0,"currency_code":"USD","in_stock":true},{"title":"ProSample PM Kit — 10L bottle + charger + strainer","offer_id":48106173661374,"sku":"630158","price":4745.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/630110-ProSample-PM-12-Open.jpg?v=1783623226"},{"product_id":"in-situ-level-troll-nc-non-contact-radar-level-sensor","title":"In-Situ Level TROLL NC Non-Contact Radar Level Sensor","description":"\u003cp\u003eThe Level TROLL NC is a high-performance, 80 GHz FMCW non-contact radar sensor for precise water level measurement in surface water, dredging, and coastal applications where a submerged instrument isn't practical. It integrates into In-Situ's shared ecosystem with a standard twist-lock connector, native SDI-12 and Modbus RS485 output, and the VuSitu mobile app for setup and data collection.\u003c\/p\u003e\u003cp\u003eA narrow 5° beam angle — needing just a 1 m (2.4 ft) diameter clear zone at 11.5 m (25 ft) range — gives you more flexibility to install in tight spaces than wider-beam radar sensors. In VuSitu, you can view the live echo curve to check signal return, fine-tune the Active Zone, and adjust Peak Detection for cleaner readings, plus confirm mount tilt with color-coded indicators. Built to withstand harsh weather for long-term, low-maintenance monitoring.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The Level TROLL NC needs a TROLL Com Plus or VuLink telemetry (lithium batteries only, one instrument max) to power data collection. Mounting bracket sold separately — need one, or other accessories? Visit \u003ca href=\"https:\/\/envirotechonline.com\/collections\/in-situ-level-troll-parts-accessories\"\u003eIn-Situ Level TROLL Parts \u0026amp; Accessories\u003c\/a\u003e.\u003c\/p\u003e","brand":"In-Situ","offers":[{"title":"15m (49 ft)","offer_id":48159364382910,"sku":"1022610","price":1468.0,"currency_code":"USD","in_stock":true},{"title":"30m (98 ft)","offer_id":48159364415678,"sku":"1022620","price":2332.0,"currency_code":"USD","in_stock":true},{"title":"50m (164 ft)","offer_id":48159364448446,"sku":"1022630","price":3083.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/In-SituNo-ContactSensor.png?v=1783970286"},{"product_id":"in-situ-aqua-troll-601","title":"In-Situ Aqua TROLL 600","description":"\u003cp\u003eThe Aqua TROLL 600 is a fully customizable five-port multiparameter sonde with capacity for four interchangeable sensors and an antifouling wiper. It adds onboard data logging and internal battery power to the Aqua TROLL platform, ideal for short- and long-term unattended deployment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eStandard configuration includes the sonde plus:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eTemperature\/Conductivity sensor\u003c\/li\u003e\n\u003cli\u003epH\/ORP sensor\u003c\/li\u003e\n\u003cli\u003eRDO (Dissolved Oxygen) sensor\u003c\/li\u003e\n\u003cli\u003eTurbidity sensor\u003c\/li\u003e\n\u003cli\u003eAntifouling wiper\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eChoose your pressure range\/vent option and cable length above. Need a different sensor mix, extra cable, or replacement parts? Visit \u003ca href=\"https:\/\/envirotechonline.com\/collections\/in-situ-aqua-troll-parts-accessories\"\u003eIn-Situ Aqua TROLL Parts \u0026amp; Accessories\u003c\/a\u003e.\u003c\/p\u003e\u003ch1 style=\"text-align: center;\"\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/pdf\/water_quality\/in-situ_aqua_troll_600.pdf\" target=\"_blank\"\u003e\u003cstrong\u003eSpec Sheet\u003c\/strong\u003e\u003c\/a\u003e\u003c\/h1\u003e","brand":"In-Situ","offers":[{"title":"No Pressure Sensor \/ No Cable (Spot-Check Only)","offer_id":48166432407742,"sku":"0074030","price":10018.0,"currency_code":"USD","in_stock":true},{"title":"No Pressure Sensor \/ 25 ft","offer_id":48166432440510,"sku":"0074030+1034580","price":10279.0,"currency_code":"USD","in_stock":true},{"title":"No Pressure Sensor \/ 50 ft","offer_id":48166432473278,"sku":"0074030+1034590","price":10369.0,"currency_code":"USD","in_stock":true},{"title":"No Pressure Sensor \/ 75 ft","offer_id":48166432506046,"sku":"0074030+1034600","price":10460.0,"currency_code":"USD","in_stock":true},{"title":"No Pressure Sensor \/ 100 ft","offer_id":48166432538814,"sku":"0074030+200042","price":10550.0,"currency_code":"USD","in_stock":true},{"title":"0-9m, Non-Vented \/ No Cable (Spot-Check Only)","offer_id":48166432571582,"sku":"0074040","price":10303.0,"currency_code":"USD","in_stock":true},{"title":"0-9m, Non-Vented \/ 25 ft","offer_id":48166432604350,"sku":"0074040+1034580","price":10564.0,"currency_code":"USD","in_stock":true},{"title":"0-9m, Non-Vented \/ 50 ft","offer_id":48166432637118,"sku":"0074040+1034590","price":10654.0,"currency_code":"USD","in_stock":true},{"title":"0-9m, Non-Vented \/ 75 ft","offer_id":48166432669886,"sku":"0074040+1034600","price":10745.0,"currency_code":"USD","in_stock":true},{"title":"0-9m, Non-Vented \/ 100 ft","offer_id":48166432702654,"sku":"0074040+200042","price":10835.0,"currency_code":"USD","in_stock":true},{"title":"0-30m, Non-Vented \/ No Cable (Spot-Check Only)","offer_id":48166432735422,"sku":"0074050","price":10303.0,"currency_code":"USD","in_stock":true},{"title":"0-30m, Non-Vented \/ 25 ft","offer_id":48166432768190,"sku":"0074050+1034580","price":10564.0,"currency_code":"USD","in_stock":true},{"title":"0-30m, Non-Vented \/ 50 ft","offer_id":48166432800958,"sku":"0074050+1034590","price":10654.0,"currency_code":"USD","in_stock":true},{"title":"0-30m, Non-Vented \/ 75 ft","offer_id":48166432833726,"sku":"0074050+1034600","price":10745.0,"currency_code":"USD","in_stock":true},{"title":"0-30m, Non-Vented \/ 100 ft","offer_id":48166432866494,"sku":"0074050+200042","price":10835.0,"currency_code":"USD","in_stock":true},{"title":"0-76m, Non-Vented \/ No Cable (Spot-Check Only)","offer_id":48166432899262,"sku":"0074060","price":10303.0,"currency_code":"USD","in_stock":true},{"title":"0-76m, Non-Vented \/ 25 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Each sensor uses a solid-state transducer with a flexible silicon \u003cem\u003ewet\/wet\u003c\/em\u003e diaphragm, encapsulated in a 304L stainless steel housing (approx. 13\/16\" diameter) and finished with marine-grade epoxy so moisture can never work its way in and cause drift. A stainless steel micro-screen cap keeps silt, mud, and sludge from fouling the sensing element.\u003c\/p\u003e\n\n\u003cp\u003eThe WL400 outputs a two-wire 4–20 mA signal (convertible to 0.5–2.5 VDC across a 125 ohm resistor) that can run up to 3,000 ft to your logging device, so it drops easily into virtually any datalogger, telemetry system, monitor, or display. A vented cable provides automatic barometric pressure compensation, and a dynamic temperature-compensation system holds accuracy across a broad temperature range.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWL400 submersible pressure transducer with 304L stainless steel housing\u003c\/li\u003e\n  \u003cli\u003eMolded-on, waterproof vented cable in the length you select (barometric compensation built in)\u003c\/li\u003e\n  \u003cli\u003eIntegrated \u003cstrong\u003etemperature\u003c\/strong\u003e measurement output\u003c\/li\u003e\n  \u003cli\u003eConfiguration\/calibration \u003cstrong\u003esoftware\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eQuick reference guide and factory calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAccuracy of ±0.1% FS (full scale); ±0.2% over a 35°–70°F range\u003c\/li\u003e\n  \u003cli\u003eWet\/wet silicon diaphragm for excellent linearity and very low hysteresis\u003c\/li\u003e\n  \u003cli\u003e4–20 mA output; signal transmits up to 3,000 ft\u003c\/li\u003e\n  \u003cli\u003eAutomatic barometric compensation via vented cable\u003c\/li\u003e\n  \u003cli\u003eMarine-grade epoxy encapsulation and stainless micro-screen cap resist fouling and moisture\u003c\/li\u003e\n  \u003cli\u003e10–36 VDC supply; operating range −40° to +185°F\u003c\/li\u003e\n  \u003cli\u003eSix pressure\/level ranges (0–3, 0–15, 0–30, 0–60, 0–120, 0–250 ft) and cable lengths up to 500 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003eThe WL400 is used for remote monitoring and recording of water level and pressure in a wide variety of settings, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGroundwater level and well-depth monitoring\u003c\/li\u003e\n  \u003cli\u003ePump tests and aquifer\/sludge testing\u003c\/li\u003e\n  \u003cli\u003eSurface water flow, stream and river gauging, irrigation canals\u003c\/li\u003e\n  \u003cli\u003eTank, tide, and floating-dock level monitoring (including saltwater)\u003c\/li\u003e\n  \u003cli\u003eStormwater, flood analysis, and run-off studies\u003c\/li\u003e\n  \u003cli\u003ePipe flow and general water pressure measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConfiguration Guidance\u003c\/h3\u003e\n\u003cp\u003eSelect the \u003cstrong\u003epressure range\u003c\/strong\u003e that covers the maximum water level change expected for your application (not necessarily the total water depth) — choosing the smallest suitable range yields the best accuracy. Then choose the \u003cstrong\u003ecable length\u003c\/strong\u003e measured from the top of your logger to the bottom of the sensor. A 25 ft cable is standard; longer cables are available up to 500 ft.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: the standard polyurethane cable is not recommended for use with hydrocarbons or high concentrations of chlorine — consider the WL450 Water Level Transmitter for those applications.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.xylem.com\/siteassets\/brand\/global-water\/resources\/specification\/global-water-wl400-spec-sheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWL400 Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.ysi.com\/File%20Library\/Documents\/Guides\/WL400-Quick-Reference-Guide.pdf\" target=\"_blank\" rel=\"noopener\"\u003eWL400 Quick Reference Guide (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Global Water","offers":[{"title":"0-3 ft \/ 3 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ft","offer_id":48178348949694,"sku":"400740-300","price":2276.0,"currency_code":"USD","in_stock":true},{"title":"0-15 ft \/ 500 ft","offer_id":48178348982462,"sku":"400740-500","price":2872.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 25 ft","offer_id":48178349015230,"sku":"400742-25","price":1004.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 50 ft","offer_id":48178349047998,"sku":"400742-50","price":1101.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 75 ft","offer_id":48178349080766,"sku":"400742-75","price":1316.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 100 ft","offer_id":48178349113534,"sku":"400742-100","price":1513.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 125 ft","offer_id":48178349146302,"sku":"400742-125","price":1568.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 150 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ft","offer_id":48178349408446,"sku":"400744-150","price":1645.0,"currency_code":"USD","in_stock":true},{"title":"0-60 ft \/ 200 ft","offer_id":48178349441214,"sku":"400744-200","price":1850.0,"currency_code":"USD","in_stock":true},{"title":"0-60 ft \/ 300 ft","offer_id":48178349473982,"sku":"400744-300","price":2276.0,"currency_code":"USD","in_stock":true},{"title":"0-60 ft \/ 500 ft","offer_id":48178349506750,"sku":"400744-500","price":2912.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 125 ft","offer_id":48178349539518,"sku":"400746-125","price":1672.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 150 ft","offer_id":48178349572286,"sku":"400746-150","price":1801.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 200 ft","offer_id":48178349605054,"sku":"400746-200","price":1880.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 250 ft","offer_id":48178349637822,"sku":"400746-250","price":2178.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 300 ft","offer_id":48178349670590,"sku":"400746-300","price":2352.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 350 ft","offer_id":48178349703358,"sku":"400746-350","price":2488.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 400 ft","offer_id":48178349736126,"sku":"400746-400","price":2700.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 500 ft","offer_id":48178349768894,"sku":"400746-500","price":2912.0,"currency_code":"USD","in_stock":true},{"title":"0-250 ft \/ 250 ft","offer_id":48178349801662,"sku":"400748-250","price":2121.0,"currency_code":"USD","in_stock":true},{"title":"0-250 ft \/ 300 ft","offer_id":48178349834430,"sku":"400748-300","price":2352.0,"currency_code":"USD","in_stock":true},{"title":"0-250 ft \/ 350 ft","offer_id":48178349867198,"sku":"400748-350","price":2488.0,"currency_code":"USD","in_stock":true},{"title":"0-250 ft \/ 400 ft","offer_id":48178349899966,"sku":"400748-400","price":2700.0,"currency_code":"USD","in_stock":true},{"title":"0-250 ft \/ 500 ft","offer_id":48178349932734,"sku":"400748-500","price":2872.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/Global-Water-WL400.jpg?v=1784562340"},{"product_id":"wl450-stainless-steel-water-level-transmitter","title":"WL450 Stainless Steel Water Level Transmitter","description":"\u003cp\u003eThe Global Water \u003cstrong\u003eWL450 All Stainless Steel Water Level Transmitter\u003c\/strong\u003e is a submersible pressure transducer built for accuracy and long-term reliability in demanding environments. A rugged, flush-mounted \u003cstrong\u003e316L stainless steel diaphragm\u003c\/strong\u003e paired with digital temperature compensation and an environmentally neutral Hytrel® cable lets it hold performance day after day across a wide range of operating conditions — making it well suited to test wells, surface water, streams, and reservoirs, in both fresh and saltwater.\u003c\/p\u003e\n\n\u003cp\u003eEach transmitter ships calibrated for a specific range in feet of head and is set up for 2-wire, 4–20 mA output. The WL450 also provides a direct \u003cstrong\u003eRS-485 digital output\u003c\/strong\u003e for connection to a modem or communications network, avoiding the error and complexity of analog-to-digital conversion devices.\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eWL450 all-stainless-steel submersible water level transmitter (316L SS diaphragm)\u003c\/li\u003e\n  \u003cli\u003eFactory calibration for the selected pressure range (feet of head)\u003c\/li\u003e\n  \u003cli\u003eAppropriate length of \u003cstrong\u003eHytrel-jacketed, vented \u0026amp; shielded cable\u003c\/strong\u003e (0.23\" dia.) — included per configuration\u003c\/li\u003e\n  \u003cli\u003e2-wire 4–20 mA analog output plus RS-485 digital output\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRugged 316L stainless steel flush-mounted diaphragm for heavy pressure and consistent readings\u003c\/li\u003e\n  \u003cli\u003eAccuracy: Total Error Band ±0.1% with 16-bit digital error correction\u003c\/li\u003e\n  \u003cli\u003eDigital temperature compensation across the entire operating range\u003c\/li\u003e\n  \u003cli\u003eDurable, environmentally neutral Hytrel® vented cable, suitable for long-term submersion\u003c\/li\u003e\n  \u003cli\u003eOperating temperature: 14° to 176°F (−10° to 80°C)\u003c\/li\u003e\n  \u003cli\u003eOverpressure protection up to 2× full-scale range\u003c\/li\u003e\n  \u003cli\u003eDepth ratings from 3 ft to 500 ft\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eTest wells and groundwater monitoring\u003c\/li\u003e\n  \u003cli\u003eSurface water, streams, and river gauging\u003c\/li\u003e\n  \u003cli\u003eReservoirs, tanks, and long-term environmental monitoring\u003c\/li\u003e\n  \u003cli\u003eFresh and saltwater level measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConfiguration Guidance\u003c\/h3\u003e\n\u003cp\u003eChoose the \u003cstrong\u003epressure range\u003c\/strong\u003e that covers the maximum water level change expected for your application (not necessarily the total water depth); selecting the smallest suitable range yields the best accuracy. The matching standard \u003cstrong\u003ecable length\u003c\/strong\u003e is included with each range. \u003cem\u003eNote: a 24 V power source or a BR100 boost regulator is required when the cable length exceeds 50 ft (and for the larger ranges). Custom ranges and cable lengths are available on request.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/www.ysi.com\/wl450\" target=\"_blank\" rel=\"noopener\"\u003eWL450 Product Page \u0026amp; Specifications (YSI \/ Global Water)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Global Water","offers":[{"title":"0-3 ft \/ 25 ft","offer_id":48178367660222,"sku":"AIL003","price":1142.0,"currency_code":"USD","in_stock":true},{"title":"0-15 ft \/ 25 ft","offer_id":48178367692990,"sku":"AIL015","price":1180.0,"currency_code":"USD","in_stock":true},{"title":"0-30 ft \/ 50 ft","offer_id":48178367725758,"sku":"AIL030","price":1269.0,"currency_code":"USD","in_stock":true},{"title":"0-60 ft \/ 100 ft","offer_id":48178367758526,"sku":"AIL060","price":1449.0,"currency_code":"USD","in_stock":true},{"title":"0-120 ft \/ 150 ft","offer_id":48178367791294,"sku":"AIL120","price":1639.0,"currency_code":"USD","in_stock":true},{"title":"0-250 ft \/ 300 ft","offer_id":48178367824062,"sku":"AIL250","price":2156.0,"currency_code":"USD","in_stock":true},{"title":"0-500 ft \/ 510 ft","offer_id":48178367856830,"sku":"AIL500","price":2806.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/GlobalWater_WL450.jpg?v=1784564421"},{"product_id":"seametrics-turbo-turbidity-sensor","title":"Seametrics Turbo Turbidity Sensor","description":"\u003cp\u003eThe \u003cstrong\u003eSeametrics Turbo\u003c\/strong\u003e is a turbidity and temperature sensor with an integrated datalogger, built in 316 stainless steel for surface water and groundwater monitoring. It's suited to stream and river monitoring, effluent treatment monitoring, hydrological run-off studies, and drinking water filtration efficiency testing.\u003c\/p\u003e\n\u003cdiv style=\"border: 1px solid lightgray; text-align: center; width: 100%; padding: 12px;\"\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/pdf\/water_quality\/seametrics_turbo.pdf\" style=\"font-size: 15px;\" target=\"_blank\"\u003eSPECS\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid lightgray; text-align: center; width: 100%; padding: 12px;\"\u003e\u003ca href=\"https:\/\/www.geotechenv.com\/Manuals\/Seametrics_Manuals\/Seametrics-Turbo-Instructions.pdf\" style=\"font-size: 15px;\" target=\"_blank\"\u003eMANUAL\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003eCommunicating over Modbus RTU (RS485) or SDI-12, the Turbo logs over 260,000 records with a replaceable wiper blade to keep the optics clean between service visits, and runs on Seametrics' free Aqua4Plus software for flexible recording sequences and real-time data viewing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasures turbidity up to 3,000 NTU and temperature\u003c\/li\u003e\n\u003cli\u003e±2% or ±2 NTU accuracy at 25°C, whichever is greater\u003c\/li\u003e\n\u003cli\u003e260,000+ record non-volatile memory\u003c\/li\u003e\n\u003cli\u003eModbus RTU (RS485) and SDI-12 digital interface\u003c\/li\u003e\n\u003cli\u003eReplaceable wiper blade for optic maintenance\u003c\/li\u003e\n\u003cli\u003eFree Aqua4Plus software with real-time viewing and one-click export\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNeed cables, connectors, or replacement kits? Browse the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/seametrics-parts-accessories\"\u003eSeametrics Parts \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Seametrics","offers":[{"title":"0-400 NTU","offer_id":48187718303934,"sku":"72106085","price":5498.75,"currency_code":"USD","in_stock":true},{"title":"0-3,000 NTU","offer_id":48187718336702,"sku":"2N11130","price":5498.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/Turbo-Web-1024x1024.png?v=1784758662"},{"product_id":"horiba-laqua-tb220-portable-turbidity-meter","title":"Horiba LAQUA TB220 Portable Turbidity Meter","description":"\u003cp\u003eThe HORIBA LAQUA TB220 is a portable turbidity meter for measuring water clarity in the field or on the bench. It reads suspended particulate as NTU using a nephelometric optical measurement, and is sized to be carried to the sample point rather than requiring samples be transported back to a laboratory.\u003c\/p\u003e\n\n\u003cp\u003eTurbidity is one of the fastest indicators that something has changed in a water system — a filter breaking through, a main disturbed, sediment mobilized by rainfall, or a treatment process drifting out of specification. Measuring it on site means you find out in minutes rather than after a laboratory turnaround.\u003c\/p\u003e\n\n\u003ch3\u003eChoose your configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTB220-K complete kit\u003c\/strong\u003e (3201073569) — the meter in a carrying case with 4 empty measurement vials, 4 sealed calibration vials (0.02, 20, 100 and 800 NTU), silicone oil, polishing cloth, instruction manual and quick guide. Everything needed to calibrate and measure from day one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTB220 meter only\u003c\/strong\u003e (3201068607) — the instrument on its own, for users who already hold calibration standards and vials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy the vials and silicone oil matter\u003c\/h3\u003e\n\u003cp\u003eTurbidity readings are sensitive to the condition of the glass. Scratches, fingerprints and micro-abrasions scatter light and inflate readings, particularly at low NTU. The supplied silicone oil and cloth are used to fill fine surface imperfections before measurement, and vials should be treated as consumables and replaced when they become worn. Keeping a spare vial set on hand protects the integrity of low-range results.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrinking water treatment and distribution compliance monitoring\u003c\/li\u003e\n\u003cli\u003eFilter performance and breakthrough checks\u003c\/li\u003e\n\u003cli\u003eStormwater and construction site discharge monitoring\u003c\/li\u003e\n\u003cli\u003eRiver, lake and stream water quality surveys\u003c\/li\u003e\n\u003cli\u003eWastewater effluent clarity verification\u003c\/li\u003e\n\u003cli\u003eGroundwater sampling — confirming turbidity has stabilized during low-flow purging\u003c\/li\u003e\n\u003cli\u003eAquaculture, pool and process water clarity checks\u003c\/li\u003e\n\u003cli\u003eDredging and sediment plume monitoring\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.horiba.com\/ind\/water-quality\/download\/\"\u003eHORIBA water quality document library — brochures, manuals and quick guides\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConsumables \u0026amp; accessories\u003c\/h3\u003e\n\u003cp\u003eSpare sample vials, vial light shield covers, silicone oil and cloth sets and replacement carrying cases are stocked separately — see the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba-parts-accessories\"\u003eHoriba Parts \u0026amp; Accessories\u003c\/a\u003e collection.\u003c\/p\u003e\n\n\u003cp\u003eBrowse all \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba\"\u003eHORIBA instruments\u003c\/a\u003e.\u003c\/p\u003e","brand":"Horiba","offers":[{"title":"TB220-K Complete Kit - Case, Vials, Calibration Standards, Oil \u0026 Cloth - 3201073569","offer_id":48226321858750,"sku":"3201073569","price":1082.0,"currency_code":"USD","in_stock":true},{"title":"TB220 Meter Only - 3201068607","offer_id":48226321891518,"sku":"3201068607","price":923.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/csm_APAC-TB220-image-01_22b98e1aee.jpg?v=1785337143"},{"product_id":"solinst-rainlogger-6","title":"Solinst Rainlogger 6","description":"\u003cp\u003eThe \u003cstrong\u003eSolinst Rainlogger 6\u003c\/strong\u003e is an event-based datalogger, not a pressure sensor. It connects to a standard tipping-bucket rain gauge through a 3-pin connector cable and records and saves each individual tip the moment it happens, along with its time stamp and the total rainfall for the period. It works with most tipping buckets using either a normally-open or normally-closed reed switch output. Housed in a 22 mm x 160 mm (7\/8\" x 6.3\") ABS enclosure weighing just 50 grams, it offers strong electrostatic discharge protection and a typical 10-year battery, so a station can be left largely unattended.\u003c\/p\u003e\n\u003cp\u003eNon-volatile memory holds up to 100,000 time-stamped readings, with a separate dedicated backup store for the most recent 500 readings. Clock accuracy is ± 1 minute per year and the logger operates from -20°C to +80°C. Self-test capability and field firmware upgrades are built in.\u003c\/p\u003e\n\u003cp\u003eThe real value of the Rainlogger 6 is what it does to your existing water level data. Because it programs and downloads through the same Levelogger Software as the rest of the Levelogger 6 Series, rainfall files drop straight in beside Levelogger files, letting you correlate precipitation events against changes in groundwater or surface water level without any manual data wrangling. Data can be viewed as a graph or table, downloaded as All Data, Append Data or Partial Download, and exported to other programs.\u003c\/p\u003e\n\u003cp\u003eCommunication is optical high-speed — 9600 bps, 57,600 with a USB Desktop or Field Reader, and 19.2k with the Mk3 USB-C PC Interface Cable. It is compatible with all Solinst Levelogger 6 communication and deployment accessories, downloads to a DataGrabber USB transfer device or a smart device via the Solinst Levelogger App, and can be integrated into a Solinst telemetry system or an SDI-12 or MODBUS network.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e the tipping-bucket rain gauge itself is not included — the Rainlogger 6 is the logger, supplied complete with its connection cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo you have everything you need?\u003c\/strong\u003e Readers, cables and adaptors shared across the series are listed under \u003ca href=\"https:\/\/envirotechonline.com\/products\/solinst-levelogger-6-series-parts-accessories\" title=\"Solinst Levelogger 6 Series Parts \u0026amp; Accessories\"\u003eSolinst Levelogger 6 Series Parts \u0026amp; Accessories\u003c\/a\u003e. Pair rainfall data with a \u003ca href=\"https:\/\/envirotechonline.com\/products\/solinst-3001-levelogger-6\" title=\"Solinst 3001 Levelogger 6\"\u003eLevelogger 6\u003c\/a\u003e and a \u003ca href=\"https:\/\/envirotechonline.com\/products\/solinst-barologger-6\" title=\"Solinst Barologger 6\"\u003eBarologger 6\u003c\/a\u003e for a complete site record.\u003c\/p\u003e","brand":"Solinst","offers":[{"title":"c\/w Connection Cable","offer_id":48760070340798,"sku":"117687","price":423.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/3002-rainlogger-6.webp?v=1787157798"}],"url":"https:\/\/envirotechonline.com\/collections\/stormwater-monitoring.oembed","provider":"EnviroTech Services","version":"1.0","type":"link"}