{"product_id":"dragino-dr-cl-integrated-residual-chlorine-sensor-rs485","title":"Dragino DR-CL | Integrated Residual Chlorine Sensor (RS485)","description":"\u003cdiv class=\"shopiot-detailed-description\" style=\"max-width: 800px; font-family: 'DM Sans', sans-serif; color: #2a2b2a; line-height: 1.6; font-size: 16px;\"\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eDragino DR-CL\u003c\/strong\u003e is an \u003cstrong\u003eintegrated residual chlorine sensor\u003c\/strong\u003e that measures free (residual) chlorine in water and outputs readings over \u003cstrong\u003eRS485 (Modbus-RTU)\u003c\/strong\u003e. It is designed to connect to the Dragino \u003cstrong\u003eWQS-series water quality transmitter\u003c\/strong\u003e (sold separately), which uploads the data to a LoRaWAN, NB-IoT or CAT-M1 server for remote monitoring.\u003c\/p\u003e\n\u003cp\u003eIt is available in two measurement ranges - \u003cstrong\u003eDR-CL-2ML (0-2 mg\/L)\u003c\/strong\u003e for low-chlorine applications such as drinking water, and \u003cstrong\u003eDR-CL-10ML (0-10 mg\/L)\u003c\/strong\u003e for higher-concentration applications - both with 0.01 mg\/L resolution and an IP68, pressure-rated build for demanding water environments.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 18px; font-weight: bold; text-transform: uppercase;\"\u003eKey Features\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px;\"\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eResidual Chlorine Measurement\u003c\/strong\u003e\u003cspan style=\"color: #555;\"\u003eContinuously measures free chlorine in water with 0.01 mg\/L resolution and ±5% FS accuracy.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cline x1=\"3\" y1=\"12\" x2=\"21\" y2=\"12\"\u003e\u003c\/line\u003e\u003cline x1=\"3\" y1=\"6\" x2=\"3\" y2=\"18\"\u003e\u003c\/line\u003e\u003cline x1=\"21\" y1=\"6\" x2=\"21\" y2=\"18\"\u003e\u003c\/line\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eTwo Range Options\u003c\/strong\u003e\u003cspan style=\"color: #555;\"\u003eChoose 0-2 mg\/L (DR-CL-2ML) for low-level monitoring or 0-10 mg\/L (DR-CL-10ML) for higher concentrations.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M9 2v6M15 2v6M6 8h12v4a6 6 0 0 1-12 0z\"\u003e\u003c\/path\u003e\u003cpath d=\"M12 18v4\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eRS485 Modbus Output\u003c\/strong\u003e\u003cspan style=\"color: #555;\"\u003eStandard RS485 Modbus-RTU at 9600 baud connects directly to the Dragino WQS transmitter or any Modbus controller.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; gap: 12px; align-items: flex-start; padding: 15px; border-radius: 4px; border: 1px solid #f5f5f5; background: #fff;\"\u003e\n\u003cspan style=\"color: #7765e3;\"\u003e\u003csvg width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\"\u003e\u003cpath d=\"M12 22s8-4 8-10V5l-8-3-8 3v7c0 6 8 10 8 10z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/span\u003e\n\u003cdiv style=\"font-size: 14px;\"\u003e\n\u003cstrong style=\"display: block; color: #2a2b2a;\"\u003eRugged \u0026amp; Submersible\u003c\/strong\u003e\u003cspan style=\"color: #555;\"\u003eIP68-rated with 0.6 MPa pressure resistance and low 0.19 W power draw for long-term field deployment.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px; background-color: #fafafa; border-left: 4px solid #7765E3; padding: 20px; border-radius: 2px;\"\u003e\n\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-top: 0; margin-bottom: 12px; font-weight: bold; text-transform: uppercase;\"\u003eTypical Applications\u003c\/h2\u003e\n\u003cdiv style=\"margin: 0; font-size: 15px;\"\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 10px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eDrinking \u0026amp; tap water:\u003c\/strong\u003e verify disinfection levels in distribution networks (DR-CL-2ML).\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 10px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWater treatment \u0026amp; wastewater:\u003c\/strong\u003e monitor chlorine dosing in treatment plants.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eIndustrial \u0026amp; pool water:\u003c\/strong\u003e track higher chlorine concentrations (DR-CL-10ML).\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 15px; font-weight: bold; text-transform: uppercase;\"\u003eAvailable Models\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f3f0ff;\"\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #e8e4fb;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #e8e4fb;\"\u003eChlorine Range\u003c\/th\u003e\n\u003cth style=\"text-align: left; padding: 10px; border: 1px solid #e8e4fb;\"\u003eResolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e8e4fb;\"\u003e\u003cstrong\u003eDR-CL-2ML\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e8e4fb;\"\u003e0 - 2 mg\/L\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e8e4fb;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e8e4fb;\"\u003e\u003cstrong\u003eDR-CL-10ML\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e8e4fb;\"\u003e0 - 10 mg\/L\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #e8e4fb;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 15px; font-weight: bold; text-transform: uppercase;\"\u003eTechnical Integration\u003c\/h2\u003e\n\u003cdiv style=\"font-size: 15px;\"\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eMeasured parameter:\u003c\/strong\u003e Free \/ residual chlorine, ±5% FS accuracy, 0.01 mg\/L resolution\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eRanges:\u003c\/strong\u003e DR-CL-2ML: 0-2 mg\/L  |  DR-CL-10ML: 0-10 mg\/L\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOutput:\u003c\/strong\u003e RS485, Modbus-RTU, 9600 baud rate\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003ePower:\u003c\/strong\u003e DC 7-30 V; consumption 0.19 W\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eWater conditions:\u003c\/strong\u003e Temperature 0-50 °C; pH 4-9; flow rate 30-60 L\/h (flow-channel installation)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eProtection:\u003c\/strong\u003e IP68; pressure resistance 0.6 MPa\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e Connects to the Dragino WQS-series water-quality transmitter (sold separately) for LoRaWAN \/ NB-IoT \/ CAT-M1 uplink\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 8px;\"\u003e\n\u003cspan style=\"color: #7765e3; margin-right: 8px; font-weight: bold;\"\u003e•\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eSetup help:\u003c\/strong\u003e For probe selection or WQS transmitter pairing, contact the shopioT technical team\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-bottom: 35px;\"\u003e\n\u003ch2 style=\"color: #7765e3; font-size: 16px; margin-bottom: 18px; font-weight: bold; text-transform: uppercase;\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 16px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-weight: 600;\"\u003eWhat is the difference between DR-CL-2ML and DR-CL-10ML?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #555;\"\u003eOnly the measurement range: 0-2 mg\/L versus 0-10 mg\/L. All other specifications are identical.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 16px;\"\u003e\n\u003cp style=\"margin: 0 0 4px; font-weight: 600;\"\u003eDoes it work on its own?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #555;\"\u003eNo - it is a probe that connects via RS485 to the Dragino WQS-series transmitter (sold separately), or to any Modbus-RTU controller.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp style=\"margin: 0 0 4px; font-weight: 600;\"\u003eHow is it installed?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #555;\"\u003eVia a flow channel with a recommended flow rate of 30-60 L\/h, in water at 0-50 °C and pH 4-9.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection style=\"margin-top: 30px; padding: 25px; background: #f3f0ff; border-radius: 6px; text-align: center;\"\u003e\n\u003ch2 style=\"color: #2a2b2a; font-size: 18px; margin: 0 0 16px; font-weight: bold;\"\u003eMonitoring Water Quality?\u003c\/h2\u003e\n\u003cdiv style=\"display: flex; gap: 12px; flex-wrap: wrap; justify-content: center;\"\u003e\n\u003ca href=\"\/en-de\/pages\/contact\" style=\"display: inline-block; padding: 12px 22px; background: #7765E3; color: #fff; text-decoration: none; border-radius: 4px; font-weight: 600; font-size: 14px;\"\u003eTalk To Our IoT Team\u003c\/a\u003e\u003ca href=\"https:\/\/shopiot.eu\/collections\/dragino\" style=\"display: inline-block; padding: 12px 22px; background: #fff; color: #7765e3; text-decoration: none; border-radius: 4px; font-weight: 600; font-size: 14px; border: 1px solid #7765E3;\"\u003eShop Dragino\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e","brand":"Dragino","offers":[{"title":"Chlorine Measuring Range: 0-2 mg\/L","offer_id":56877069402436,"sku":"DR-CL-2ML","price":289.0,"currency_code":"EUR","in_stock":true},{"title":"Chlorine Measuring Range: 0-10 mg\/L","offer_id":56877074743620,"sku":"DR-CL-10ML","price":339.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0418\/3749\/4423\/files\/dragino-dr-cl-residual-chlorine-sensor.webp?v=1782222102","url":"https:\/\/shopiot.eu\/en-de\/products\/dragino-dr-cl-integrated-residual-chlorine-sensor-rs485","provider":"shopiot","version":"1.0","type":"link"}