Doorbell Transformer 24V 40VA for Ring Video Doorbells, Hardwired Door Chime Transformer Power Supply, Compatible with Ring and Nest Hello Video Doorbells

Price: $16.89
(as of Jun 11, 2025 23:28:58 UTC – Details)

This 24 V transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring, Eufy Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation 24V/40VA Thermostat and Doorbell Transformer, Power Supply Compatible with Nest, Ecobee, Sensi and Honeywell Thermostat, Nest Hello Doorbell and All Versions of Ring Doorbell (4011MT)
Powers thermostats and doorbells: replace underpowered transformers
Easy to install: screw down and thread clamps to electrical box
This 24 volt transformer is UL-certified, offers reliable performance
Input is 120 VAC, 60 Hz; Output: 24 V/ 40 VA
This 24v transformer fits for Nest, Ecobee, Honeywell and Sensi smart thermostats; Also compatible with Ring Video Doorbell, Ring Video Doorbell 2, Ring Video Doorbell Pro, Nest Skybell Doorbell, and other devices that require constant 24 volt power for operation
Product Dimensions ‏ : ‎ 3.54 x 2.44 x 1.89 inches; 1.57 Pounds
Item model number ‏ : ‎ 071231723668
Date First Available ‏ : ‎ April 1, 2019
Manufacturer ‏ : ‎ ZKRFID
ASIN ‏ : ‎ B07Q4PPKQ8
Country of Origin ‏ : ‎ China
【Specification】Input: 120 V/AC, 60 HZ; Output: 24 V AC at 40 VA, UL-certified, reliable performance and safe to use
【Compatibility】The transformer doorbell power supply compatible with Ring doorbell transformer, Nest, Ecobee, Sensi and Honeywell thermostat and doorbells
【UL Certification】This doorbell transformer has UL Certification, which greatly improves safety and longevity, as transformer without this certification have a higher risk of circuit induced fire house problems during operation
【Easy to Install】The doorbell transformer is easy to replace and install with screws, unscrews or threaded clips to the electrical box, in a safe place
【Power Multiple Thermostats/Doorbells】Replace and upgrade underpowered transformers with this 24V AC Transformer, while providing ample power to single or multiple thermostats and doorbells（Perfect replacement for an old transformer and will work with any wired door chime）