24V Transformer C Wire Adapter for All Versions of Ring Doorbell, 315 inches
Adapter Compatible with the following devices: Compatible with smart thermostats ( Nest 1st/ Nest 2nd thermostats (Not for 3rd), Ecobee Thermostat, Honeywell Smart Wifi Thermostat, Sensi Thermostat, etc ) and doorbells ( Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Ring Video Doorbell versions (2020 release, 3/4/Plus, and Pro 1/2), Skybell Doorbell, Eufy E340, etc.) and other devices that require 24 volt power With constant power and constant operation.