Large Resolution Door Contact

Note: Be careful not to damage the spring inside the device.

1
one

Remove the cover, pressing in from the side with the larger tab.

2
two

Locate the battery.

3
three

Gently remove the battery from its connections.

4
four

Note the battery terminals (+, -).

5
five

Place a new battery in the device (CR123A).

6
six

Starting from the side with the smaller tab, replace the cover on the device.

7
seven

Press in until you hear a click.