{"product_id":"rainman-hydro-tester","title":"Rainman Hydro Tester","description":"\u003cp\u003eMeasure nutrients, salts, and other dissolved solids. As your membranes age, the TDS (total dissolved solids) of the product water will gradually increase. A hydrotester will measure the water quality in terms of how much salt is being removed. It is common to want to change membranes when the system gets to about 750-800ppm (parts per million) of TDS.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFour modes: EC: mS, uS, TDS: ppt, ppm.\u003c\/li\u003e\n\u003cli\u003eFast and accurate, +\/-2%\u003c\/li\u003e\n\u003cli\u003eSimple to use\u003c\/li\u003e\n\u003cli\u003eDigital calibration\u003c\/li\u003e\n\u003cli\u003eWater resistant\u003c\/li\u003e\n\u003cli\u003eDurable\u003c\/li\u003e\n\u003cli\u003eAuto shut off after five minutes\u003c\/li\u003e\n\u003cli\u003eEC to TDS conversion factor: NaCl (0.5 avg)\u003c\/li\u003e\n\u003cli\u003eAuto temperature compensation (ATC)\u003c\/li\u003e\n\u003cli\u003eHold function\u003c\/li\u003e\n\u003cli\u003ePower: 3 x 1.5V (357A)\u003c\/li\u003e\n\u003cli\u003eBattery life: approximately 2 years\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Rainman","offers":[{"title":"Default Title","offer_id":57199268855974,"sku":"Rain-Hydrotester","price":49.86,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/6325\/1622\/files\/watermaker-hydrotester.png?v=1787869834","url":"https:\/\/rotonmarine.com\/products\/rainman-hydro-tester","provider":"Roton","version":"1.0","type":"link"}