Plastic Float Switch Liquid Water Level Sensor Fish Tank 100mm Pool L
Plastic Float Switch Liquid Water Level Sensor Fish Tank 100mm Pool L

Plastic Liquid Level Sensor Float Switch

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Product Description: 

A small mechanical switch (aka. reed switch) sealed in the stationary part of the sensor is activated by a small magnet in the moving part (the float).  This sensor works with any voltage/current (AC or DC) within the maximum limits as specified below.  All voltage/current/power ratings are for resistive loads.  However, one should always try to reduce the voltage and current applied on the sensor to a level as low as possible in order to extend the life of the sensor.  (For example, the Electrical Life is 5,000,000 cycles when the load is 5V, 10mA; 100,000 cycles when the load is 24V, 250mA)


  • Plastic (Polypropylene) Construction
  • 240V/0.5A/10Watts Maximum Capacity. (A relay is needed to control a heavier load, such as a motor.)
  • Vertical Mount
  • Longer sensor body sticks deeper into the tank
  • NO (Normally Open) or NC(Normally Closed). Convertible by Simply Inverting the Float.  Combination (see illustrations below):
    • Top mount, switch open when tank is full
    • Top mount, switch closed when tank is full
    • Bottom mount, switch open when tank is empty
    • Bottom mountswitch closed when tank is empty
Operation Voltage Range  0 to 240 V (AC or DC)
Max Current 0.5A
Max Power 10W
Max Temperature 180 ºF 
Min Temperature -4 ºF
Max Pressure 150 PSI
Min Specific Gravity 0.90



All of our products have a 30-day risk-free return policy. If you are not satisfied with the product, for any reason, you may return it within 30 days upon delivery for a full refund, no questions asked. We do NOT charge any restocking fee. Items must be returned in unused or as-new condition. The buyer is responsible for return shipping cost.