{"product_id":"1-2-3-4-1-inch-brass-hall-flow-sensor-water-flow-sensor-flowmeter-control-liquid-sensor-switch","title":"Brass Hall Water Flow Sensor 1\/2 3\/4 1 Inch Flowmeter And Liquid Sensor Switch","description":"\u003cdiv\u003e\n\u003cp\u003eThis brass-bodied Hall Water Flow Sensor fits 1\/2, 3\/4, and 1 inch pipe connections and uses a Hall-effect sensor to deliver a pulse output proportional to water flow. Installed at the inlet of a water heater or similar device, it detects flow by the rotating impeller and feeds a pulse signal to the controller for precise regulation. The impeller is inlaid with stainless steel beads for wear resistance, and the sealing ring design provides a reliable, leak-free seal. The Hall element is encapsulated to resist water ingress and aging, making it suitable for continuous operation in demanding environments.\u003c\/p\u003e \u003ch3\u003eBenefits \u0026amp; Tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eAccurate flow sensing in water heaters, drinking fountains, water vending machines, and campus payment systems.\u003c\/li\u003e \u003cli\u003eWide interface options: G1\/2, G3\/4, and G1 threading for flexible installation.\u003c\/li\u003e \u003cli\u003eInstall vertically (within 5 degrees) and avoid severe impacts or chemical exposure to maximize longevity.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eProduct specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eInterface size: G1\/2, G3\/4, G1\u003c\/li\u003e \u003cli\u003eWorking voltage range: DC 5–18V\u003c\/li\u003e \u003cli\u003eWater pressure resistance: ≤1.75 MPa\u003c\/li\u003e \u003cli\u003eOutput pulse high level: \u0026gt; DC 4.7V (input DC 5V)\u003c\/li\u003e \u003cli\u003eOutput pulse duty cycle: 50% ± 10%\u003c\/li\u003e \u003cli\u003eInsulation resistance: \u0026gt; 100 MΩ\u003c\/li\u003e \u003cli\u003eTightness: 1.7 MPa water pressure test for 1 minute, no leakage or deformation\u003c\/li\u003e \u003cli\u003eFlow pulse characteristics: \u003cul\u003e \u003cli\u003e1\/2\" (11 * Q) Q = L\/min + 3% → 660 pulses per liter\u003c\/li\u003e \u003cli\u003e3\/4\" (6.6 * Q) Q = L\/min + 3% → 396 pulses per liter\u003c\/li\u003e \u003cli\u003e1\" F = (8*Q - 4) ± 5% → 476 pulses per liter\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eWiring: Red IN (positive), Yellow OUT (signal), Black GND (negative)\u003c\/li\u003e \u003cli\u003ePrecautions: severe impact and chemical erosion prohibited; vertical installation; inclination ≤ 5°; medium temperature ≤ 120°C\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWarnings \/ Reminders\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eDo not expose the device to severe impacts or corrosive chemicals.\u003c\/li\u003e \u003cli\u003eEnsure proper vertical mounting and limit tilt to 5 degrees.\u003c\/li\u003e \u003cli\u003eOperate only with liquid temperatures up to 120°C and pressures within specified range.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.\u003c\/p\u003e\n\u003cp\u003eAt intercyprus.com since 2002 — trusted for quality and reliability.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"1\/2\"","offer_id":54889370616150,"sku":"1005005588692911-1\/2\"","price":26.18,"currency_code":"EUR","in_stock":true},{"title":"3\/4\"","offer_id":54889370648918,"sku":"1005005588692911-3\/4\"","price":30.43,"currency_code":"EUR","in_stock":true},{"title":"1\"","offer_id":54889370681686,"sku":"1005005588692911-1\"","price":45.94,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/S7f87e7e6c7e84a17a98bd524bc9b3896O.webp?v=1785828708","url":"https:\/\/www.intercyprus.com\/products\/1-2-3-4-1-inch-brass-hall-flow-sensor-water-flow-sensor-flowmeter-control-liquid-sensor-switch","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}