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

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DSC WLS907-433 Door Window Sensor:
Press end latch to remove the cover, then remove and replace 3 AAA Alkaline batteries

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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

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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.