Honeywell 5800 Key Fobs Frequently Asked Questions

What Kind of Battery Goes In My Honeywell 5834-4?
The Honeywell 5834-4 uses a 3-volt lithium coin cell battery, such as the Honeywell CR2032. The battery is designed to power the 5834-4 for roughly 3 - 5 years. When the voltage of the battery drops below 2.3 volts, a low battery message will be displayed on the panel whenever a button is pressed.
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How Do I Program a 5834-4 Key Fob to an L3000?
A 5834-4 key fob can be programmed into an L3000 system through the programming menu of the panel. You will need the installer code to access this menu.
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What Battery Does the 5816 Use?
The Honeywell 5816 2 input wireless door/window contact uses the CR123 3 volt lithium battery. Learn about the 5816 and its compatible replacement battery.
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How Do I Get a 2GIG GC3 To See A High-Security 5834-4?
A 5834-4 is now set to High-Security mode from the factory, which will not work on a GC3. Read on to see how you can still use the 5834-4 with your 2GIG GC3.
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