{"product_id":"hydros-dual-inline-tds-sensor","title":"HYDROS Dual Inline TDS Sensor","description":"\u003ch2 style=\"margin:0 0 8px;font-size:1.3em;font-weight:700;line-height:1.3;\"\u003eMonitor Your RO\/DI Water Quality in Real Time\u003c\/h2\u003e\n\u003cp\u003eThe HYDROS Dual Inline TDS Sensor uses two corrosion-resistant titanium sensors to monitor the water quality of any RO\/DI system, providing years of trouble-free readouts. The compact display mounts right at your filtration so you can check your total dissolved solids (TDS) at a glance and know exactly when it is time to change your membrane or DI resin. Pair it with a HYDROS controller to log readings and get alerts through the \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/automation-controllers\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003eHYDROS automation system\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"background:#f6f6f6;border-left:4px solid #666;padding:10px 14px;margin:14px 0;font-size:0.95em;\"\u003e\n\u003cstrong\u003eRequires a HYDROS Control\u003c\/strong\u003e with an available Sense Port, such as the \u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hydros-start\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003eHYDROS Start\u003c\/a\u003e (sold separately). The sensor plugs directly into a Sense Port and draws power from the Control, so no separate power supply is needed.\n\u003c\/div\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo high-quality titanium sensors\u003c\/strong\u003e that resist corrosion for reliable, long-lasting readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual inline design\u003c\/strong\u003e lets you monitor water quality before and after your RO\/DI system to measure filter performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact magnet-mount display\u003c\/strong\u003e for an at-a-glance TDS reading right at your filtration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation\u003c\/strong\u003e with included 1\/4 inch push-connect fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlugs into any HYDROS Sense Port\u003c\/strong\u003e and needs no separate power supply.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"border-collapse:collapse;width:100%;margin:8px 0;font-size:0.95em;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#f4f4f4;\"\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd;padding:6px 10px;text-align:left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSensors\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2 x corrosion-resistant titanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eRange\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e0 to 999 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eResolution\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e1 ppm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eAccuracy\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e+\/- 2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSensor cable length\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e24 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eDisplay cable length\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e13 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eSensor size\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e2 x 0.6 in (diameter x thickness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eFittings\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003e1\/4 in push-connect (included)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003eConnection\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd;padding:6px 10px;\"\u003ePlugs into a HYDROS Control Sense Port (no separate power)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eWhy Monitor TDS?\u003c\/h3\u003e\n\u003cp\u003eTotal dissolved solids (TDS) tell you how pure your source water is. Reef keepers and planted-tank aquarists rely on clean RO\/DI water to avoid nuisance algae and unwanted elements. By reading TDS on both sides of your system, you can see when your RO membrane or DI resin is wearing out and replace it before impure water reaches your tank.\u003c\/p\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eComplete Your HYDROS System\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hydros-start\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003eHYDROS Start\u003c\/a\u003e, a beginner-friendly controller with four Sense Ports for this sensor.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hydros-control-xp8-energy-bar\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003eHYDROS Control XP8 Energy Bar\u003c\/a\u003e for smart, individually controlled outlets.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/coralvue-hydros-salinity-probe-kit\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003eHYDROS Salinity Probe Kit\u003c\/a\u003e to monitor salinity on marine tanks.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/squeakysaquatics.com\/products\/hydros-triple-optical-water-level-sensor\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003eHYDROS Triple Optical Water Level Sensor\u003c\/a\u003e for automatic top-off.\u003c\/li\u003e\n\u003cli\u003eBrowse all \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/water-testing\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003ewater testing\u003c\/a\u003e and \u003ca href=\"https:\/\/squeakysaquatics.com\/collections\/automation-controllers\" style=\"color:#2c6ecb;text-decoration:underline;\"\u003econtrollers and automation\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:16px 0 4px;font-size:1.05em;font-weight:600;line-height:1.25;border-left:4px solid #666;padding-left:8px;\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a HYDROS controller to use this?\u003c\/strong\u003e\u003cbr\u003eYes. The sensor draws its power from a HYDROS Control Sense Port, so you need a HYDROS Control such as the HYDROS Start. It does not run on its own.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use it on both fresh and salt water systems?\u003c\/strong\u003e\u003cbr\u003eYes. TDS monitoring applies to any RO\/DI system, whether you are making water for a reef tank or a planted freshwater tank.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat do the two sensors measure?\u003c\/strong\u003e\u003cbr\u003eThe dual inline design lets you read TDS before and after your RO\/DI unit, so you can see how well your membrane and resin are removing dissolved solids.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I install it?\u003c\/strong\u003e\u003cbr\u003eThe sensor uses standard 1\/4 inch push-connect fittings (included) that tie into your RO\/DI tubing, then plugs into an open Sense Port on your HYDROS Control.\u003c\/p\u003e","brand":"Hydros","offers":[{"title":"Default Title","offer_id":48266664247515,"sku":"HDRS-TDS","price":60.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/5209\/3403\/files\/hydros_tds_1.jpg?v=1771173387","url":"https:\/\/squeakysaquatics.com\/products\/hydros-dual-inline-tds-sensor","provider":"Squeaky's Aquatics","version":"1.0","type":"link"}