Auspow Doorbell Transformer 24V 40Va For Ring Video Doorbells, Hardwired Door Chime Transformer Power Supply, Compatible With Ri

?Specification?Input: 120 V 50/60Hz; Output: 24 V 40Va, This 24 Volt Transformer Is Offers Reliable Performance And Safe To Use&Nbsp;?Universal Compatibility? 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&Nbsp;?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)&Nbsp;?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&Nbsp;?Customer Service?If Our 24V 40Va Doorbell Transformer Fail To Meet Your Expectations, Please Get In Touch With Us And We'Ll Try To Resolve The Issue. If Unresolved, You'Ll Get A Refund Or Replacement.