Thermostat and Doorbell Transformer 24VAC 40VA

Replaces and upgrade the underpowered transformer with this 24V AC transformer with plenty of power for single or multiple thermostats and doorbells.
Fits for Nest, Ecobee, Honeywell, and Sensi smart thermostats, also with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, and Nest Skybell Doorbell.
RU-certified, offers reliable performance
PURE COPPER, ANTI RUST AND ESD PROTECTED
Use high-quality materials, high-quality silicon steel plate, all-copper enameled wire, nylon flame-retardant J rubber core, flame-retardant tape,
High-temperature resistance lead and vacuum impregnation varnish treatment.