Find the image of your door window sensor below to view instructions on how to complete your battery replacement.


Honeywell 5816 Door Window Sensor:

Press the end latch to remove the cover, then remove and replace the CR123A lithium battery


Battery Replacement Video


Ecolink WST-232 Door Window Sensor:

Slide cover up to remove cover, then remove and replace the CR2032 Lithium battery


Make sure to securely snap the cover back together to prevent tamper activity.


Tags: 5816, 5816WMWH, Ademco, Battery Replacement, Honeywell, Lithium Battery, Lynx, Vista

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