Limit Switch Unit

by M5Stack

Unit Limit is a limit switch sensor.

When the switch bar is pressed, the digital single of the Unit would change from 3.3V to 0V, which may generate a limit signal to MCU or other peripherals. Applied for multiple mechanical equipments, to achieve limit protection.


  • Contact limit switch
  • Long durability, upto 400K times lifetime
  • Multiple installation methods


  • 1x Unit limit
  • 1x HY2.0-4P Cable (20cm)


  • Stop switch/Limit switch


Spec Parameter
Switch Bar Length 16mm
Mechnical Lifetime 400K Times
Power Supply DC 5V
Output Logical Signal DC 3.3V
Standby Current DC5V@2mA
Operation Current DC5V@3mA
Net Weight 6.3g
Gross Weight 11.4g
Product Size 37 x 24 x 9.5mm
Package Size 92 x 135mm