Water Level & Flow

Float Level Switch

  • Float level sensor for detecting the presence or level of liquid in tanks, reservoirs and other containers.
  • Uses a floating mechanism that changes the electrical state as the liquid level rises or falls.
  • Ideal for water tanks, pumps, automatic filling systems, alarms, irrigation and Arduino or ESP32 projects.
Compatible Platforms: Arduino Raspberry Pi ESP 32
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SKU: float-level-switch

Limited Stock (5 left)
$6.00
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Float Level Sensor

The Float Level Sensor is a simple and reliable device for detecting liquid levels in tanks, containers and reservoirs. It uses a buoyant float that moves with the liquid level and actuates an internal switching mechanism when the float reaches a defined position.

Depending on the sensor design and installation orientation, the float can be used as a high-level or low-level switch. The sensor can be connected directly to a control circuit or used with a microcontroller such as Arduino or ESP32 to monitor tank levels and control pumps, valves or alarms.

Float level sensors are widely used in water storage systems, automatic pump control, irrigation equipment, liquid dispensers, industrial automation and DIY monitoring projects. The exact electrical ratings, mounting method and switching arrangement depend on the specific float sensor variant.

Product Type Liquid Float Level Sensor / Level Switch
Sensing Method Mechanical float with internal switch
Detection Liquid level / high or low liquid condition
Output Electrical switch contact
Interface Switch / contact output
Supply Voltage Passive device; no dedicated supply required for the switching element
Switch Configuration Depends on specific sensor variant
Mounting Tank or container mounting; method depends on sensor design
Compatible Liquids Typically water and other compatible non-corrosive liquids
Applications Water tanks, pump control, irrigation, liquid dispensers, alarms and automation
Compatible Platforms Arduino, ESP32, relay controllers and other digital control systems
Sensor Type Mechanical liquid level switch