- Using a small screwdriver, lift the lid which is held by the snap fit.
- Lift the board with the electronics carefully and replace the CR2032 battery.
- Place the electronics board back into the base. Pay attention to the wire routing so that the wires do not get pinched when the lid is reassembled. Make sure to check that the enclosure seal is properly seated into the base. Place the lid back and press to secure all four snap fits.