IQ Panel 2 - Door Window Sensor Batteries
All batteries should be found at any Batteries+ Bulbs, grocery or convenience stores
Insert screwdriver into end tab then open cover, remove and replace CR123A battery
Press area above latch to open cover, battery is CR123A or SAFT LS14250 Lithium
Press end button to remove cover, remove and replace 2 AAA Alkaline batteries
Slide cover to remove then pry CR2032 Lithium battery from holder to replace