{"product_id":"liquid-level-probe-relay-module-dc12-24v-water-tank-pump-controller","title":"Liquid Level Probe Relay Module DC 12-24V Water Tank Controller","description":"\n\u003ch2\u003eSingle Channel Liquid Level Probe Relay Module – DC 12–24V Water Tank Pump Controller\u003c\/h2\u003e\n\u003cp\u003eTake full control of your water management system with this versatile \u003cstrong\u003eSingle Channel Liquid Level Probe Relay Module\u003c\/strong\u003e. Designed for DC 12–24V operation, this compact controller automatically manages your water tank pump in both \u003cstrong\u003edrainage\u003c\/strong\u003e and \u003cstrong\u003ereplenishment\u003c\/strong\u003e modes — making it ideal for aquariums, irrigation systems, sump tanks, industrial reservoirs, and home water storage setups.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Operating Modes:\u003c\/strong\u003e Switch between \u003cem\u003eDrainage Mode\u003c\/em\u003e and \u003cem\u003eReplenishment Mode\u003c\/em\u003e to suit your specific application.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Delay Timer:\u003c\/strong\u003e Fine-tune the relay delay period so your pump operates exactly when — and for as long — as you need.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Compatible with DC 12V to 24V power supplies for flexible installation across a range of systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProbe-Based Liquid Detection:\u003c\/strong\u003e Instantly detects the presence or absence of water at the probe tip, triggering the relay with precision.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSingle Channel Design:\u003c\/strong\u003e Simple, focused control for one pump or device — easy to integrate and configure.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Voltage Safety:\u003c\/strong\u003e Operates below 50Vac \/ 75Vdc, meeting EU LVD low-voltage safety standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Durable:\u003c\/strong\u003e Lightweight module form factor designed for easy mounting in control panels or enclosures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003ch4\u003eDrainage Mode\u003c\/h4\u003e\n\u003cp\u003eThe relay activates as soon as the probe detects water. It continues to run until the probe is no longer submerged. Once out of the water, the configurable delay timer begins counting down — and when the delay expires, the relay deactivates, stopping the pump.\u003c\/p\u003e\n\n\u003ch4\u003eReplenishment Mode\u003c\/h4\u003e\n\u003cp\u003eThe relay activates the moment the probe detects a dry (no-water) state. It continues running until water reaches the probe again. Once water is detected, the delay timer begins, and after the set delay, the relay shuts off — preventing overfill.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDC 12V – 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 (Single Channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Modes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDrainage \/ Replenishment (switchable)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDelay\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Safety Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLow voltage — Below 50Vac or 75Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh-Concern Chemicals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Water Level Controller Relay Module\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Due to lighting and screen differences, the item's color may appear slightly different from the photos. Please allow a 1mm–1cm variance due to manual measurement.\u003c\/p\u003e\n\n\u003cp\u003eFor more information on electrical safety standards for low-voltage devices, visit the U.S. Consumer Product Safety Commission (CPSC).\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What is the operating voltage range for this liquid level relay module?\u003c\/h4\u003e\n\u003cp\u003eA: This water level controller relay module operates on DC 12V to 24V, making it compatible with a wide range of standard power supplies used in home, garden, and light industrial applications.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What is the difference between Drainage Mode and Replenishment Mode on this relay module?\u003c\/h4\u003e\n\u003cp\u003eA: In \u003cstrong\u003eDrainage Mode\u003c\/strong\u003e, the relay turns on when the probe detects water and turns off (after the set delay) once the probe is no longer submerged — ideal for emptying a tank. In \u003cstrong\u003eReplenishment Mode\u003c\/strong\u003e, the relay activates when the probe is dry and shuts off (after the delay) once water is detected again — perfect for automatically refilling a tank to the desired level.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I adjust the delay time on this water level controller?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The delay period is fully adjustable, allowing you to customize how long the relay continues to operate after the water condition changes. This helps prevent pump short-cycling and gives you precise control over your water management system.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What types of applications is this liquid level probe relay module suitable for?\u003c\/h4\u003e\n\u003cp\u003eA: This module is well-suited for water tanks, sump pumps, aquariums, garden irrigation systems, industrial fluid reservoirs, rainwater collection systems, and any other DC-powered liquid level monitoring and control application.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the operating voltage range for this liquid level relay module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This water level controller relay module operates on DC 12V to 24V, making it compatible with a wide range of standard power supplies used in home, garden, and light industrial applications.\"}}, {\"@type\": \"Question\", \"name\": \"What is the difference between Drainage Mode and Replenishment Mode on this relay module?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"In Drainage Mode, the relay turns on when the probe detects water and turns off (after the set delay) once the probe is no longer submerged — ideal for emptying a tank. 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This helps prevent pump short-cycling and gives you precise control over your water management system.\"}}, {\"@type\": \"Question\", \"name\": \"What types of applications is this liquid level probe relay module suitable for?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This module is well-suited for water tanks, sump pumps, aquariums, garden irrigation systems, industrial fluid reservoirs, rainwater collection systems, and any other DC-powered liquid level monitoring and control application.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Fasteners \u0026 Electrical\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/collections\/fasteners-electrical\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Liquid Level Probe Relay Module DC 12-24V Water Tank Controller\", \"item\": \"https:\/\/kujrmc-0q.myshopify.com\/products\/liquid-level-probe-relay-module-dc12-24v-water-tank-pump-controller\"}]}\u003c\/script\u003e","brand":"Vue","offers":[{"title":"Default Title","offer_id":48750172340416,"sku":"\u003cnone\u003e","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0772\/9338\/7968\/files\/S36cd9f03dc4548fc8c4f22b87eef522bD.webp?v=1786224099","url":"https:\/\/vueselect.com\/products\/liquid-level-probe-relay-module-dc12-24v-water-tank-pump-controller","provider":"Vue","version":"1.0","type":"link"}