DSC Door Window Sensor Batteries
Find the image of your door window sensor below to view instructions on how to complete your battery replacement.
DSC WS4945 Door Window Sensor:
Insert a small screwdriver into the slot, twist to remove the cover, then remove and replace CR-2 Lithium battery
DSC WLS907-433 Door Window Sensor:
Press end latch to remove the cover, then remove and replace 3 AAA Alkaline batteries
Ecolink WST-200/WST-201 Door Window Sensors:
Slide cover up to remove, then remove and replace CR2032 Lithium battery ensuring the + side is face up
For other sensor instructions, see sensors organized by model here. If your device is not represented, refer to instructions included with your device, or you can text a Support Representative at 469.513.8685, 7 days a week from 8 am to 8 pm CT.