Mercury Switch Module

100% of 100
Price $5.99


A mercury switch (also known as a mercury tilt switch) is a switch that opens and closes an electrical circuit through a small amount of liquid mercury.

When the module tilts, it outputs low and the corresponding LED lights up.


  • A premium switch module suitable for beginners.
  • Effective in environmental extremes.
  • PCB size: 2.0 x 2.0 cm.
  • Working voltage: 3.3-5V; with power light and signal output indicator.
  • Compact size; with 3-pin anti-reverse cable included.


The module is mainly applied to tilt detection (e.g. burglar alarm).
More details can be found in

Package List

  • Mercury switch module x 1
  • 3-Pin anti-reverse cable x 1

Mercury is harmful to human body and environment. Thus, please be careful when using a mercury switch in case of glass breaking. It should also be properly handled when it's no longer used.

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