{"product_id":"hm-digital-tds-3-handheld-tds-meter-with-thermometer","title":"HM Digital TDS-3 Handheld TDS Meter With Thermometer","description":"The HM Digital TDS-3 handheld water quality tester enables you to determine just how good or bad your water really is! These testers accurately measure the TDS level in your water. Ideal for testing reverse osmosis membrane performance and determining the need for replacement. Ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket or toolbox at all times!   \u003cbr\u003e  \u003cb\u003eFeature:\u003c\/b\u003e  \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eHighly efficient and accurate\u003c\/b\u003e due to its advanced microprocessor technology.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHold function\u003c\/b\u003e -- Saves measurements for convenient reading and recording, with the sound of a buzzer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAuto-off function\u003c\/b\u003e -- Turns off meter after 10 minutes of non-use to conserve batteries.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAutomatic function\u003c\/b\u003e -- After operating three minutes in the same condition,the measurement simply stops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh TDS Reading\u003c\/b\u003e -- In case of measuring over 999ppm, the figure of X 10 twinkles automatically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDigital Thermometer\u003c\/b\u003e -- Built-in thermometer with temp button.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDisplay\u003c\/b\u003e -- Large and easy-to-read LCD screen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFactory Calibrated\u003c\/b\u003e -- Recalibration is not necessary, but can be done easily with a watch screwdriver.\u003c\/li\u003e\n\u003c\/ul\u003e  The NSF minimum Standard for Percent Rejection is 75%. We recommend replacing the RO membrane once it tests at 80% rejection or lower.  \u003cbr\u003e\u003cbr\u003e  \u003cb\u003eEasy to Follow Instructions!\u003c\/b\u003e  \u003cbr\u003e  Using a clean cup or glass, take a sample of your raw feed water. Remove the protective cap from the Tester. Push the \"ON\" button to activate LCD display. Submerse the tester's probes into the water sample and observe for approx. 10 seconds. Record the results. Repeat the same procedure with a sample of your reverse osmosis (RO) water. If the system is new or the membrane has been replaced, do not test the first tank of RO water. The first tank of product water will contain sanitizer and possibly carbon fines from your new filters. This will cause false reading. Use the following formula to calculate the percentage of solids (TDS) that your membrane is removing:","brand":"HM Digital","offers":[{"title":"Single","offer_id":43322005618877,"sku":"TDS-3","price":12.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0553\/2434\/4509\/files\/elirif6x06xnknxdumtd.jpg?v=1772831123","url":"https:\/\/northamericanrainsystems.com\/products\/hm-digital-tds-3-handheld-tds-meter-with-thermometer","provider":"North American Rain Systems","version":"1.0","type":"link"}