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.
Product Parameters: Input AC 120V, 60Hz 0.2A, output 24V / 500mA. Cable length is 315 inches / 8 meters.
Easy To Install: 2 pin non-polarity wires support easy and quick install, Assemble along the wall from your outlet to the doorbell and thermostat, 8M(315 inch) cable is long enough to plug it into an electrical outlet inside or outside your house.
Security: Special design and materials ensure that provide the best current output connected to your device. Prevent short circuit, overvoltage, overcurrent, overheat, ensure charging safety.
Please note: Please check whether your device is the model in the details before purchasing. Note: Competible with Google Nest Thermostat 1st/2nd, Not Competible with Nest Thermostat 3rd.

Product description

Product Parameters:

Input AC 120V, 60Hz 0.2A, Output 24V / 500mA. Cable length is 315 inches / 8 meters.

compatible with	Smart thermostats (Nest 1st / Nest 2nd thermostats (Not for 3rd), Ecobee Thermostat, Honeywell Smart Wifi Thermostat, Sensi Thermostat, etc )
compatible with	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.)
compatible with	Other devices that require 24-volt power With constant power and constant operation
compatible with	Please check whether your device is the model in the details before purchasing. Competible with Google Nest Thermostat 1st/2nd，Not for Google Nest Thermostat 3rd.
Please note:	Please verify before purchasing that your device requires a 24V 500ma input, as if your device requires a power adapter with 18V or a current lower than 500ma, there may be a mismatch. When you link it, it cannot be used and there is a phenomenon of not working, but this does not mean that the adapter is damaged. Please pay attention to the voltage and current.

FOR DOORBELLS

Keep adapter unplugged.
Install wires from 24 volt adapter into the terminals for your doorbell unit (any wire can be connected to any terminal).
Plug adapter into outlet.
Put doorbell face plate on housing unit.
Power up and verify your doorbell is receiving necessary power using the accompanying application.

FOR THERMOSTATS

Shut off the circuit breaker power supply.
Install any wire from the 24 volt adapter to the "C" end and another wire to the "RC" end. If your system has a cooling system, you may need to use the included diode and connect the “RH” to the 'RC’ terminal.
Plug the power adapter into the socket.
Open the circuit breaker power supply.
Install the panel on the thermostat.