Simon XTi—Door Window Sensor Batteries

Press end button to remove cover and replace 2 AAA alkaline batteries

Press end latch to remove cover, battery is CR123A or SAFT LS14250 Lithium battery

1. Pull sensor away from backplate then insert screwdriver into side slots to remove cover

2. Slide CR2032 Lithium battery from holder to replace

1. Insert coin into corner slot then twist to remove cover from backplate

2. Remove inside cover then slide CR2032 Lithium battery from holder to replace