Nano Door Sensor (RE122)

You will need a small flat head screwdriver and a CR1632 Battery

1.

Insert the screwdriver into one of the notches on the corners of the device and pry off the cover.

2.

Locate the battery.

3.

Gently slide out the battery.

4.

Note the battery terminals (+, -). Putting in a battery reversed can damage the device.

5.

Place a new battery in the device (CR1632).

6.

Replace the cover on the device, ensuring the corners match up.

7.

Press in until you hear a click.

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