This solution will show you how to utilize your Door / Window Sensor 7 Pro with permanent power and forms part of the larger Door / Window Sensor 7 Pro user guide. 

The Door / Windows Sensor 7 Pro has the capability to work with an external DC power supply with 3.0 / 3.3 V. 

You'll need:

  • Small gauge wires (preferably stranded 18AWG).
  • 3.0 / 3.3 VDC external power supply.

Follow these steps to wiring your Door / Window Sensor 7 Pro:

  1. Remove the battery.
  2. Connect ( + ) to terminal 3.
  3. Connect ( - ) to terminal 1 .


- Please pay attention to the polarity, an exchange of (+) and (-) can lead to the destruction of the device and loss of warranty.

- The voltage of 3.3 V must not be exceeded. This will destroy the sensor and void the warranty.

- Never operate with battery and 3.3VDC adapter on terminal 1/3 at the same time. Only one power type can be used at one time.