{"id":9681137696919,"title":"HM Digital DM-3 Inline Dual TDS\/EC Monitor Meter, Upgraded DM-2 DM-2EC","handle":"hm-digital-dm-3-inline-dual-tds-ec-monitor-meter-upgraded-dm-2-dm-2ec","description":"\u003ch3\u003eHM Digital DM-3 Inline Dual TDS\/EC Monitor Meter, Upgraded DM-2 DM-2EC\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThe DM-3 is a commercial-grade EC\/TDS monitor measuring EC\/TDS feed (input)\nwater vs. product (output) water of a water filtration system at any time.\nDM-3 has a large backlit screen that you will be able to see the readings in\ndark environments. With its shielded cables and diagnostic messaging this\nrobust device is ideal for Reverse Osmosis (RO), Deionized water (DI)\nfiltration systems that work well in applications such as drinking or potable\nwater, Water treatment, Aquariums, Hydroponics, and many more\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eHighly efficient and accurate due to its advanced microprocessor technology\u003c\/li\u003e\n \u003cli\u003eDisplays TDS levels of the Feed Water and Product Water with in \u0026amp; out electrode probes\u003c\/li\u003e\n \u003cli\u003eFactory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. The DM-3 features digital calibration\u003c\/li\u003e\n \u003cli\u003eDiagnostic error messaging\u003c\/li\u003e\n \u003cli\u003eShielded sensor cables\u003c\/li\u003e\n \u003cli\u003eComes equipped with two 1\/4 inch T-fittings (Also available with 3\/8 or 1\/2 fittings)\u003c\/li\u003e\n \u003cli\u003eRange: EC: 0~9999S\/0~9.99mS TDS: 0~5000ppm\/ 0~5ppt Resolution: EC: 0.1S (0~99.9) 1S (100~999) 10S (1000~9990) 0.01mS (0.00~9.99) TDS: 0.1ppm (0~99.9) 1ppm (100~999) 10ppm (1000~5000) 0.01 ppt (0.00~5.00)\u003c\/li\u003e\n \u003cli\u003eAccuracy: 2% Conversion Factor: NaCl (avg. 0.5) Cable Length: 1.2m \/3.9ft, shielded cables Sensor: Dual, 1\/4 diameter for quick-connect fittings (model SP-3, included) Digital Calibration: Digitally factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line. Power Source: 2 x AA batteries (included) Size: 11.6 x 1.9 x 7.0 cm (4.6 x 0.7 x 2.8 in) Weight: 225 g (7.9 oz.)\u003c\/li\u003e\n \u003c\/ul\u003e","published_at":"2026-07-30T18:15:16+10:00","created_at":"2026-07-26T23:37:01+10:00","vendor":"HM Digital","type":"Water Purification System Accessories","tags":["home_improvement_Aug2026"],"price":23900,"price_min":23900,"price_max":23900,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":48068453728407,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"B0CHYNGD6L","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"HM Digital DM-3 Inline Dual TDS\/EC Monitor Meter, Upgraded DM-2 DM-2EC","public_title":null,"options":["Default Title"],"price":23900,"weight":1,"compare_at_price":null,"inventory_management":"shopify","barcode":"850038872007","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/newnestshop.com\/cdn\/shop\/files\/B0CHYNGD6L.jpg?v=1785073024","\/\/newnestshop.com\/cdn\/shop\/files\/71De3AyZBSL.jpg?v=1785073024","\/\/newnestshop.com\/cdn\/shop\/files\/71YUZx8cAbL.jpg?v=1785073023"],"featured_image":"\/\/newnestshop.com\/cdn\/shop\/files\/B0CHYNGD6L.jpg?v=1785073024","options":["Title"],"media":[{"alt":null,"id":42459754889367,"position":1,"preview_image":{"aspect_ratio":1.5,"height":1707,"width":2560,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/B0CHYNGD6L.jpg?v=1785073024"},"aspect_ratio":1.5,"height":1707,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/B0CHYNGD6L.jpg?v=1785073024","width":2560},{"alt":null,"id":42459754922135,"position":2,"preview_image":{"aspect_ratio":0.667,"height":2560,"width":1707,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/71De3AyZBSL.jpg?v=1785073024"},"aspect_ratio":0.667,"height":2560,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/71De3AyZBSL.jpg?v=1785073024","width":1707},{"alt":null,"id":42459754954903,"position":3,"preview_image":{"aspect_ratio":0.667,"height":2560,"width":1707,"src":"\/\/newnestshop.com\/cdn\/shop\/files\/71YUZx8cAbL.jpg?v=1785073023"},"aspect_ratio":0.667,"height":2560,"media_type":"image","src":"\/\/newnestshop.com\/cdn\/shop\/files\/71YUZx8cAbL.jpg?v=1785073023","width":1707}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eHM Digital DM-3 Inline Dual TDS\/EC Monitor Meter, Upgraded DM-2 DM-2EC\u003c\/h3\u003e\n\u003cp id=\"b\"\u003eThe DM-3 is a commercial-grade EC\/TDS monitor measuring EC\/TDS feed (input)\nwater vs. product (output) water of a water filtration system at any time.\nDM-3 has a large backlit screen that you will be able to see the readings in\ndark environments. With its shielded cables and diagnostic messaging this\nrobust device is ideal for Reverse Osmosis (RO), Deionized water (DI)\nfiltration systems that work well in applications such as drinking or potable\nwater, Water treatment, Aquariums, Hydroponics, and many more\u003c\/p\u003e \n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n \u003cul class=\"a\"\u003e\n \u003cli\u003eHighly efficient and accurate due to its advanced microprocessor technology\u003c\/li\u003e\n \u003cli\u003eDisplays TDS levels of the Feed Water and Product Water with in \u0026amp; out electrode probes\u003c\/li\u003e\n \u003cli\u003eFactory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. The DM-3 features digital calibration\u003c\/li\u003e\n \u003cli\u003eDiagnostic error messaging\u003c\/li\u003e\n \u003cli\u003eShielded sensor cables\u003c\/li\u003e\n \u003cli\u003eComes equipped with two 1\/4 inch T-fittings (Also available with 3\/8 or 1\/2 fittings)\u003c\/li\u003e\n \u003cli\u003eRange: EC: 0~9999S\/0~9.99mS TDS: 0~5000ppm\/ 0~5ppt Resolution: EC: 0.1S (0~99.9) 1S (100~999) 10S (1000~9990) 0.01mS (0.00~9.99) TDS: 0.1ppm (0~99.9) 1ppm (100~999) 10ppm (1000~5000) 0.01 ppt (0.00~5.00)\u003c\/li\u003e\n \u003cli\u003eAccuracy: 2% Conversion Factor: NaCl (avg. 0.5) Cable Length: 1.2m \/3.9ft, shielded cables Sensor: Dual, 1\/4 diameter for quick-connect fittings (model SP-3, included) Digital Calibration: Digitally factory calibrated to NaCl 342 ppm. Re-calibration can be done separately for each line. Power Source: 2 x AA batteries (included) Size: 11.6 x 1.9 x 7.0 cm (4.6 x 0.7 x 2.8 in) Weight: 225 g (7.9 oz.)\u003c\/li\u003e\n \u003c\/ul\u003e"}