Liquid Float Switch Water Float Sensor

A liquid float switch (water level sensor) reliably senses liquid levels and acts as a water level controller — perfect for controlling pumps, alarms, and indicators in hydroponics, aquariums, ponds, and many other fluid-control applications. Its simple yet effective design ensures accurate detection of rising or falling liquid levels, making it an essential tool for automated water management. Lightweight and durable, it provides long-lasting performance even in harsh environments. Whether for residential, agricultural, or industrial use, this sensor delivers precise and dependable liquid monitoring.

Key Uses & Applications

• Hydroponics — hydroponics float switch
• Saltwater & freshwater aquariums — aquarium float sensor for power head control and reef tanks
• Ponds & pond pumps — pond pump float switch
• Gardening & irrigation systems
• Basement alarms & condensate line protection
• Marine & automotive fluid control
• Ice machines, coffee pots, pressure washers, carpet cleaning machines
• General filtration, heating, evaporator coils, and relay control

Benefits

• Simple, reliable liquid level detection for both residential and commercial setups
• Convertible between Normally Open (NO) and Normally Closed (NC) by inverting the float
• Easy integration with pumps, relays, and control circuits for automated water management
• Compact, waterproof design suitable for harsh environments

Important Safety & Installation Note

The switch rating is low — it carries small switching current (max 0.5 A). Always use a relay or contactor when switching larger loads (motors, large pumps). Improper direct connection to heavy loads can damage the switch or create safety hazards.

Specifications

Table 1: Specifications of Water Float Sensor

Specification	Value
Cable Length	30.5 cm
Maximum Load	50 W
Max Switching Voltage	100 V DC
Minimum Voltage	250 V DC
Maximum Switching Current	0.5 A
Max Load Current	1.0 A
Max Contact Resistance	0.4 Ω
Operating Temperature	-20 °C to 80 °C

Recommended Installation Tips

• Mount the float vertically and allow free movement without obstruction.
• Use a relay or contactor suitable for your pump or motor current.
• Seal cable entry points to avoid water ingress and corrosion.
• Test the NO/NC function after inverting the float for correct operation.

Take control of your water systems effortlessly with this reliable liquid float switch. Whether you’re managing an aquarium, hydroponics setup, or pond, ensure smooth and worry-free operation. Order yours today and experience precise water level control!