{"product_id":"water-level-float-switch-liquid-sensor-tank-aquarium","title":"Water Level Float Switch – Liquid Sensor for Tanks \u0026 Aquariums","description":"\u003ch2\u003eWater Level Float Switch – Smart Liquid Sensing for Any Tank\u003c\/h2\u003e\n\u003cp\u003eKeep your tanks, aquariums, and reservoirs under control with this compact and reliable \u003cstrong\u003eWater Level Float Switch\u003c\/strong\u003e. Designed to detect liquid levels automatically, this mercury-free sensor can trigger pumps, alarms, indicators, or other devices the moment water drops or rises to a set point — giving you hands-free monitoring without the hassle.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eWhy You'll Love It\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Applications:\u003c\/strong\u003e Perfect for hydroponics systems, freshwater and saltwater tanks, pet water bowls, fish tanks, aquarium filtration, heating systems, gardening setups, pool monitoring, and DIY electronics projects.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury-Free Design:\u003c\/strong\u003e Safe and environmentally responsible — no hazardous materials inside.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e Measures just 4 cm × 1.8 cm, so it fits discreetly inside virtually any tank or reservoir.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Compatibility:\u003c\/strong\u003e Supports switching voltages from 100V DC up to 220V AC, making it compatible with a broad range of systems.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy Integration:\u003c\/strong\u003e Comes with an approx. 34.5 cm cable so you can wire it quickly into pumps, relays, or control boards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable Plastic Housing:\u003c\/strong\u003e Lightweight yet sturdy — rated for temperatures from -20°C to +80°C.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Load:\u003c\/strong\u003e 50 W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Switching Voltage:\u003c\/strong\u003e 220V AC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Voltage:\u003c\/strong\u003e 100V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Switching Current:\u003c\/strong\u003e 0.5 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax Load Current:\u003c\/strong\u003e 1.0 A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTemperature Rating:\u003c\/strong\u003e -20°C to +80°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Length:\u003c\/strong\u003e Approx. 34.5 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e Approx. 4 cm × 1.8 cm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMercury-Free:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Water Level Float Switch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety \u0026amp; Standards\u003c\/h3\u003e\n\u003cp\u003eThis switch operates at low voltage (below 50V AC or 75V DC rated range), aligning with standard EU LVD (Low Voltage Directive) guidelines. For general guidance on electrical safety in home and hobby applications, refer to the U.S. Consumer Product Safety Commission – Electrical Safety Resources.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What devices can this water level float switch control?\u003c\/h4\u003e\n\u003cp\u003eA: This float switch can be wired to activate or deactivate a wide range of devices including water pumps, indicator lights, alarms, relays, and other low-voltage control systems. It's ideal for aquariums, hydroponics, pet bowls, filtration systems, and DIY projects.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this water level sensor safe to use in fish tanks and aquariums?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The switch is completely mercury-free, making it safe for use in freshwater tanks, saltwater tanks, and aquariums. Its plastic housing is water-resistant and durable for continuous submersion in appropriate liquid environments.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What voltage systems is this float switch compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: The switch supports a switching voltage range from 100V DC up to 220V AC, with a maximum switching current of 0.5 A and a maximum load current of 1.0 A. Always ensure your wiring and connected devices fall within these rated limits for safe operation.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How long is the cable on the float switch?\u003c\/h4\u003e\n\u003cp\u003eA: The included cable is approximately 34.5 cm (about 13.6 inches) long, providing enough length for most standard tank installations. If you need extra reach, an extension wire can be added during installation.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What devices can this water level float switch control?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This float switch can be wired to activate or deactivate a wide range of devices including water pumps, indicator lights, alarms, relays, and other low-voltage control systems. It's ideal for aquariums, hydroponics, pet bowls, filtration systems, and DIY projects.\"}}, {\"@type\": \"Question\", \"name\": \"Is this water level sensor safe to use in fish tanks and aquariums?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! The switch is completely mercury-free, making it safe for use in freshwater tanks, saltwater tanks, and aquariums. 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