To remove the battery cover, insert a small tool (e.g., flat head screw driver or coin) into the two slots on the rear of the unit to depress the latches, then insert the tool into the groove on the bottom to lift the cover
Remove all batteries at once and dispose of batteries properly
Place new batteries in the battery bank making sure all batteries are securely seated
After placing the first 5 batteries – the audio prompts started
After installing all new batteries for about 10-15 seconds, the audio prompt ‘IF NEW BATTERIES PRESS BUTTON’ reminds you to press the small Blue Reset Button inside the battery compartment
Press and hold the button for at lease 3 seconds
The unit will display ‘Green Tick’ in the status indicator window on the front of the unit.