{"product_id":"horiba-laquatwin-replacement-sensor","title":"Horiba LAQUAtwin Replacement Sensor","description":"\u003cp\u003eGenuine HORIBA replacement sensors for LAQUAtwin pocket water quality meters. The flat sensor is a consumable part — when readings drift, calibration will no longer hold, or response becomes sluggish, you replace the sensor rather than the meter. Swapping one takes seconds with no tools.\u003c\/p\u003e\n\n\u003cp\u003eSensor life depends on how often the meter is used and what it is used on. Expect to replace pH and conductivity sensors roughly annually with regular use, and sooner where samples are dirty, high in solids, or chemically aggressive. Keeping a spare on the shelf means a worn sensor never costs you a day's work.\u003c\/p\u003e\n\n\u003ch3\u003eSelect the sensor for your meter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eS010\u003c\/strong\u003e (part no. 3200459834) — pH sensor for pH-11, pH-22 and pH-33\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS070\u003c\/strong\u003e (part no. 3200459672) — conductivity sensor for EC-11, EC-22 and EC-33\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS071\u003c\/strong\u003e (part no. 3200597237) — conductivity-based salt sensor for Salt-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS021\u003c\/strong\u003e (part no. 3200459866) — sodium ISE salt sensor for Salt-22\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS022\u003c\/strong\u003e (part no. 3200459867) — sodium sensor for Na-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS030\u003c\/strong\u003e (part no. 3200459868) — potassium sensor for K-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS040\u003c\/strong\u003e (part no. 3200459870) — nitrate sensor for NO3-11, NO3-11C and NO3-11S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS050\u003c\/strong\u003e (part no. 3200459869) — calcium sensor for Ca-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS051\u003c\/strong\u003e (part no. 3200772945) — calcium sensor for Ca-11C blood calcium meter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS060\u003c\/strong\u003e (part no. 3200934450) — fluoride sensor for F-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eS060-ORP\u003c\/strong\u003e (part no. 3200997083) — ORP sensor for ORP-11\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSensors are model-specific and not interchangeable between parameters — match the sensor code to your meter.\u003c\/li\u003e\n\u003cli\u003eIon-selective sensors (Na, K, NO3, Ca, F) need electrode conditioning before first use: apply a few drops of the high standard solution to the flat sensor and leave it several hours, then calibrate.\u003c\/li\u003e\n\u003cli\u003eRecalibrate with fresh standard solution immediately after fitting any new sensor.\u003c\/li\u003e\n\u003cli\u003eTake care not to twist the waterproof gasket when fitting, or the meter will lose its IP67 rating.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/static.horiba.com\/fileadmin\/Horiba\/Water_Quality\/04_Support\/Brochures\/Pocket_Meters\/Brochure_-_PBT-02-2017A_LAQUAtwin_Pocket_Water_Quality_Meter_-_LOWRES.pdf\"\u003eLAQUAtwin pocket meter brochure and specifications (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/static.horiba.com\/fileadmin\/Horiba\/Water_Quality\/04_Support\/Instruction_Manuals\/Pocket_Meters\/A-IM_-_LAQUAtwin_ISE_ALL.pdf\"\u003eLAQUAtwin ion meter instruction manual, Ca-11 \/ K-11 \/ Na-11 \/ NO3-11 (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated items\u003c\/h3\u003e\n\u003cp\u003eStandard and calibration solution sets, sampling sheets and carrying cases are in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba-parts-accessories\"\u003eHoriba Parts \u0026amp; Accessories\u003c\/a\u003e collection. Complete meters are in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba\"\u003eHORIBA\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Horiba","offers":[{"title":"S010 - pH sensor for pH-11\/22\/33 - 3200459834","offer_id":48226183053502,"sku":"3200459834","price":90.0,"currency_code":"USD","in_stock":true},{"title":"S070 - Conductivity sensor for EC-11\/22\/33 - 3200459672","offer_id":48226183086270,"sku":"3200459672","price":90.0,"currency_code":"USD","in_stock":true},{"title":"S071 - Salt sensor for Salt-11 - 3200597237","offer_id":48226183119038,"sku":"3200597237","price":90.0,"currency_code":"USD","in_stock":true},{"title":"S021 - Sodium ISE salt sensor for Salt-22 - 3200459866","offer_id":48226183151806,"sku":"3200459866","price":173.0,"currency_code":"USD","in_stock":true},{"title":"S022 - Sodium sensor for Na-11 - 3200459867","offer_id":48226183184574,"sku":"3200459867","price":173.0,"currency_code":"USD","in_stock":true},{"title":"S030 - Potassium sensor for K-11 - 3200459868","offer_id":48226183217342,"sku":"3200459868","price":173.0,"currency_code":"USD","in_stock":true},{"title":"S040 - Nitrate sensor for NO3-11\/11C\/11S - 3200459870","offer_id":48226183250110,"sku":"3200459870","price":173.0,"currency_code":"USD","in_stock":true},{"title":"S050 - Calcium sensor for Ca-11 - 3200459869","offer_id":48226183282878,"sku":"3200459869","price":173.0,"currency_code":"USD","in_stock":true},{"title":"S051 - Calcium sensor for Ca-11C blood calcium meter - 3200772945","offer_id":48226183315646,"sku":"3200772945","price":260.0,"currency_code":"USD","in_stock":true},{"title":"S060 - Fluoride sensor for F-11 - 3200934450","offer_id":48226183348414,"sku":"3200934450","price":240.0,"currency_code":"USD","in_stock":true},{"title":"S060-ORP - ORP sensor for ORP-11 - 3200997083","offer_id":48226183381182,"sku":"3200997083","price":119.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/csm_Sensor_Ca__5b8979c775.jpg?v=1785337037","url":"https:\/\/envirotechonline.com\/products\/horiba-laquatwin-replacement-sensor","provider":"EnviroTech Services","version":"1.0","type":"link"}