Frequently Asked Questions

How often do HW wireless sensors need battery changes?
Wondering how long the batteries in your Honeywell window or door sensor lasts? Get the answers to all your alarm monitoring and device questions today!

What battery goes into a Honeywell 5811?
The 5811 uses a CR2032 3V lithium coin cell battery. One of several brands can be selected. Find out which batteries are compatible with the Honeywell 5811 wireless transmitter.