DesignLine Door Contact
Note: You will need a small flathead screwdriver.
Find the notch at the top of the device.
Using the screwdriver, pry off the cover of the device.
Locate the batteries.
Gently remove the batteries.
Note the battery terminals (+, -).
Place new batteries in the device (CR2032).
Place the cover back on the device.
Press in until you hear a click.