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23Optional: Connect a wired chime
Essential Wire-Free Video Doorbell
User Manual
Use a multimeter to check the voltage of a transformer
1. Disconnect your existing doorbell.
To do this, unmount or unscrew your existing doorbell to expose the wiring or AC
terminals on the back.
2. Set your multimeter to AC (the V with a wavy line on top or next to it).
3. Connect the two probes from the multimeter to the wires from your doorbell.
4. Read the voltage level on your multimeter’s display to make sure iti’s between 8-24 VAC
Check the voltage level printed on the doorbell
transformer
A doorbell transformer is a device that steps down your household AC voltage to a lower
voltage suitable for powering an electric doorbell.
The transformer is typically found:
• In the front closet near your existing doorbell
• Near your house’s circuit breaker
• In the basement or attic
• In the garage
• Near your house’s furnace
• In the crawl space under your house
Sample doorbell transformer
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