{"product_id":"horiba-laquatwin-ph-pocket-meter","title":"Horiba LAQUAtwin pH Pocket Meter","description":"\u003cp\u003eThe HORIBA LAQUAtwin pH pocket meter puts a genuine laboratory-grade pH measurement in your shirt pocket. Its patented flat sensor reads a sample as small as a single drop — roughly 0.1 mL — so you can measure pH directly on a leaf, in a soil slurry, on a moist surface, or in a sample far too small for a conventional probe.\u003c\/p\u003e\n\n\u003cp\u003eThe meter is fully waterproof (IP67), calibrates automatically at the touch of one button, and the sensor unit is user-replaceable. When the sensor eventually wears out you swap the sensor rather than replacing the instrument, which keeps long-term running costs low. Each meter ships ready to use with standard solutions, batteries, a dropper and a storage case.\u003c\/p\u003e\n\n\u003ch3\u003eChoose your model\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLAQUAtwin pH-11\u003c\/strong\u003e (part no. 3999960122) — pH and mV, accuracy ±0.1 pH, 2-point calibration. The economical choice for routine pass\/fail checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLAQUAtwin pH-22\u003c\/strong\u003e (part no. 3999960123) — pH and mV, accuracy ±0.01 pH, 3-point calibration. Ten times the resolution of the pH-11.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLAQUAtwin pH-33\u003c\/strong\u003e (part no. 3999960124) — pH, mV and temperature, accuracy ±0.01 pH, 5-point calibration. Best accuracy across a wide pH span, with temperature displayed alongside the reading.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy the flat sensor matters\u003c\/h3\u003e\n\u003cp\u003eA conventional pH probe needs enough sample depth to submerge the glass bulb and reference junction. The LAQUAtwin's flat sensor sits on the surface, so a drop is enough. It is also easy to rinse and wipe clean, and it will not break like a glass bulb — a real advantage in the field and in teaching labs.\u003c\/p\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSoil pH testing from a small slurry or extract, directly at the sample point\u003c\/li\u003e\n\u003cli\u003eAgriculture and horticulture: nutrient solutions, hydroponics, sap and leaf-surface testing\u003c\/li\u003e\n\u003cli\u003eFood and beverage QC on small or viscous samples\u003c\/li\u003e\n\u003cli\u003eEnvironmental spot checks on surface water, runoff and stormwater\u003c\/li\u003e\n\u003cli\u003eBoiler, cooling tower and process water monitoring\u003c\/li\u003e\n\u003cli\u003eClassroom and teaching laboratories where breakage is a concern\u003c\/li\u003e\n\u003cli\u003eAquarium, pool and spa water checks\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\u003c\/ul\u003e\n\n\u003ch3\u003eParts \u0026amp; accessories\u003c\/h3\u003e\n\u003cp\u003eReplacement S010 pH sensors, pH 4 and pH 7 standard solution sets, sampling sheets and the 6-meter carrying case are all stocked — 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":"pH-11 - pH\/mV, +\/-0.1 pH, 2-point calibration - 3999960122","offer_id":48226143928510,"sku":"3999960122","price":133.0,"currency_code":"USD","in_stock":true},{"title":"pH-22 - pH\/mV, +\/-0.01 pH, 3-point calibration - 3999960123","offer_id":48226143961278,"sku":"3999960123","price":154.0,"currency_code":"USD","in_stock":true},{"title":"pH-33 - pH\/mV\/Temp, +\/-0.01 pH, 5-point calibration - 3999960124","offer_id":48226143994046,"sku":"3999960124","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/csm_Product_image_pH-11B_4267316466.png?v=1785336958","url":"https:\/\/envirotechonline.com\/products\/horiba-laquatwin-ph-pocket-meter","provider":"EnviroTech Services","version":"1.0","type":"link"}