Honeywell 5800PIR-RES—Battery Replacement

When it is time to replace the battery in your Honeywell 5800PIR-RES motion detector, you will see an alert on your system panel period.

The Honeywell 5800PIR-RES motion detector requires a CR123A 3-volt lithium battery, which can be purchased from Indiana Alarm, local hardware store, mass retailer, or battery store.


Step-by-Step Instructions:

1. Press the bottom tab to remove the front cover.
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2. Remove and replace the CR123A 3-volt lithium battery.
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3. Return the cover to the sensor, starting with the side opposite the bottom tab, pressing closed until the tab snaps into place.
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4. Check if the low battery status has cleared