AC 24 Volt Transformer, C Wire Adapter, Compatible with All Versions of Ring Doorbell and Thermostat for Ecobee,Sensi and Honeywell, 315" Long Cable

Easy install on a Sensi 2 thermometer. If you have a thermostat, usually older style, that uses battery and want to upgrade to a smart thermometer but dont have power coming to your thermostat like i did this will give you the power you need. My steam boiler only has two wires coming from the basement to the front of the house living room. Running a new cable would entail opening up walls or ceilings so i did some research and whoever doenst have an extra wire running up, this is the easiest solution. Some houses when they were wired, they ran three wires and only two were used you can use the spare one to power your smart thermostat or you can use the fan wire too, i did not have either. I chose a nearby outlet and decided to run the wire through the wall to make it look neat. Installed a ln outlet next to a light switch and looks good in my opinion. Power adapter plugs in and you just wire the ends to your RC and C terminals thats it youre done, polarity doesnt matter. Made a wooden frame for the thermostat using original wood and lath that was used to construct the house, Looks cheesy but i like it.

NEEDED A "C" WIRE FOR MY WIFI THERMOSTAT. THIS WAS RECOMMENDED TO SOLVE THE PROBLEM. IT WORKS GREAT. PRICE WAS GOOD AND IT COMES WITH 26 FEET OF WIRE. I DO RECOMMEND THIS PRODUCT.

Works perfectly for Google Nest doorbell and the Google Nest Thermostat that requires the "C" wire. I have a boiler that only has 2 wires that was hooked up to a mercury switch thermostat, however the Nest thermostat Requires a "C" wire that provides very low energy source. If you don't have one then this works very well, just attach the wires to Red with the Red wire coming from the boiler and the other to the "C" wire on the Nest Thermostat. Your all set. Doorbell is easier just attach the two wires to the doorbell (it doesn't matter which wire screws into the doorbell as far as left or right just screw them in) and plug it into a wall.

Used for Sensi Thermostat, worked perfectly

I took a star off because while the instruction may not be wrong but did not work for me. Here is how I get my Amazon Thermostat to work. Here are some facts first- 1. The HVAC does have a C wire but could not power the Amazon Thermostat, it appears that my HVAC C wire has 24 volts but not enough current (amps) to power the Thermostat. Hence need to add the transformer. 2. I live in Florida, so the heating and the AC are in one unit, that means the R(H) and RC are jumped together with only 1 Red wire. 3. I can't say for other areas but in South Florida this way will work. 4. When I followed the transformer instruction and mirror to the Amazon Thermostat, push the right button to connect one transformer wire to RH and the other wire to C and the Red wire from HVAC to R. I only get heat and not AC. 5. To correct the issue and viewed at least DIY videos and learn to fix it. You need to merge the Red wire and one of the transformer power wire to a new leg that can insert into the R with the bottom right blue clip pushed up to allow the R and RC jumper to connect internally. Once that was done, everything work correctly. I have have heat and AC. The reason that I had only heat but not AC, because the R in the Amazon Thermostat is for "HEAT" and since you push the right blue clipper down, it disconnect the R and RC. There for there is no power sent to the AC unit. Since the the Amazon Thermostat cannot easily jump the connectors, then you must introduce a 3rd wire for the R connection with transformer power wire, Red from HVAC, bundle all three wire together. Hope this help you to install without a C wire or low amperage C wire. I have to say the Thermostat works great. Good luck.

Fast delivery

Works great and all that, blah blah blah, but what makes them quit working after one or two years? This is a replacement for one I bought a couple years ago that just up and quit working. I opened the broken one up and there’s really nothing inside them except two steel plates and a bunch of really thin copper wire all wound up inside. No moving parts, no motherboard, no nothing, just steel and copper, what could make them just quit working?

Llegó abierto y al parecer usado...

Works great, used it to power my humidistat. Comes with lots of wire.

Great product, worked as expected

Works perfectly. Supplied a consistent 23V to my Ring Doorbell Pro after a quick household renovation. The extremely long cord was actually a life saver as we were able to run it from the basement fuse box to the mechanical chime, spliced ultimately to the doorbell

Works as it should.