Float, Level Sensors
1. What are Float, Level Sensors?
Float-type liquid level sensors use the mechanical movement of a magnetic float in response to liquid level changes to trigger a reed switch or Hall-effect element to generate a switching signal. When the liquid level rises, the float pulls the magnet toward the sensor, energizing the internal circuit; when the liquid level drops, the sensor disconnects it. Its typical operating voltage is 5-24VDC, and its output signals include SPST/DPDT switching or 4-20mA analog.
2. What are the Technical Features of Float, Level Sensors?
Measuring Range: 50mm-6m (customizable up to 10m);
Accuracy: ±2mm (non-contact);
Media Compatibility: Water, oil, and acid and alkaline solutions (PP/PVDF float required);
Environmental Rating: IP67/IP68, operating temperature -40°C to 125°C.
3. Industry Applications of Float, Level Sensors
Industrial Control: Chemical tank level monitoring, boiler water level protection.
Consumer Life: Smart toilet tank control, water purifier level detection.
New Energy: Lithium battery electrolyte tank management, hydrogen fuel storage systems.
4. Selection Recommendations for Float, Level Sensors
A PTFE-coated float is recommended for corrosive media.
A heat-dissipating sensor is recommended for high-temperature environments.
A large-diameter float (≥50mm) should be selected for viscous liquids.