MH-SR602 PIR Motion Sensor

Product Code: 1002
Availability: In Stock
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This Mini PIR Motion Sensor based on MH-SR602 is ideal for detecting movement at a distance of 0 to 3.5m. This module has high sensitivity, fast response, low static energy consumption and a small size, so it is easy to install.


  • Pyroelectric human body infrared sensor module
  • Sensing Distance: up to 5 meters, recommended 0-3.5M
  • Output: high level, H=3.3V, L=0V
  • Power Supply DC: 3.3V-15V
  • Quiescent Current: 20uA


  • Model Number: SR602
  • Type: Vacuum Sensor
  • Sensing Distance: 3M-5M
  • Delay: Adjustable
  • Size: 15 x 15 x 20mm


  • Used for human body induction lamps, alarms, security, agriculture and forestry mining automatic equipment, etc.
  • Used for access control on-demand camera, agricultural and forestry mining automatic equipment

Key Points:

  • The high level time of the output of this product is adjustable, 2.5 seconds to 1 hour, the output time set at the factory. It is 2.5 seconds, and you can change one chip resistor if you need to change it. Read the resistance value corresponding to the typical delay time.
  • Blocking time, 2 seconds, not adjustable.
  • The factory is defined as repeatable trigger and cannot be changed.
  • The supply voltage of this module is 3.3V to 15V, and the limit voltage is 2.8V to 18V.
  • Module output timing is: output high level for 2 seconds after power-on, then go low, enter standby status. If the delay time is changed, the time when the module outputs a high level after power-on will increase accordingly, which can be understood as the startup time after entering the normal working state after the electric power will increase.
  • After installing the photosensitive element, it does not work during the day, work at night, does not contain photosensitive components, and works all day (There are no photodiodes on the module, please purchase separately if needed. Recommended: ordinary F3 photodiode) It is considered that there is no photosensitive element installed.
  • This module is very sensitive, pay attention to the installation position, try to avoid the heat source radiation source (air outlet / direct sunlight)
  • The sensitivity of this module is adjustable, and you need to change a chip resistor grid.
  • When soldering with 220V ordinary soldering iron, it is necessary to unplug the power supply before welding. It is recommended to use 24V low voltage soldering iron.

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