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I solely bought this thermostat because it is capable of operating fully locally and integrating with Home Assistant via the Homekit integration (note: this does NOT actually require an Apple device, since Home Assistant acts as the Homekit server). I replaced three ancient mercury bulb thermostats in my house with T5s and they work perfectly. Since my house is old, I don't have c wires running through the walls and the boiler doesn't even have a circuit board to add them there. There's just two wires going straight into the boiler. I used a c wire wall adapter to power the thermostats. The adapter has two leads, which go into the Rc and C terminals on the mounting plate. Then the existing R and W wires go into their corresponding terminals. You may have to reset homekit on the thermostat before it can be paired. The Resideo app works just fine, and I had no problems adding the thermostat to the wifi through the app. Once that was done, I added it to home assistant via homekit integration.

I would save your money on the new ones and just buy the refurbished models in these that they sell on Amazon. They would likely work just as well. I got the new ones for 75 on prime day. The refurbished ones sell for 60 all the time.They work for the most part. Setup is fairly simple. GeoFencing seems to break functionality for me, so I turned it off and just use alexa and the app to tell it to change temps when I leave the house.The screen is nice and I like that you can adjust the brightness from you phone. I don't like that it goes down to just the temp reading in the house which is the sleep mode. I would prefer it just leave all the information up all the time so I can read it when I walk by without having to touch it.Make sure you know exactly what kind of heating unit you have. I just bought a new build and they told me I had electric heat without a heat pump. They told me wrong, and I do have heat pumps. If you put the heating and cooling information in the wrong during the app set up it will not call for the correct air. Make sure you double check this before installing, as I learned the hard way, and had to reset the thermostats and start all overI can't speak on wiring it up as I didn't need to that since I had the Honey Well pro series thermostats(Non-WiFi) in my house from the build. It was a plug and play method for me, which is why I bought these. Saved me a lot of time.Over all I like them, but I do feel like they take forever to register that the room is actually to temp and causes my AC to run a little longer. I'll see how my electric bill compares to the month before without these installed and update my review. Also wish they didn't go into sleep mode and instead showed all the information on the screen all the time. Also wish the GeoFencing feature worked better, but this could be more of an issue with my phone not registering in the area correctly. As I said, take a chance on the the refurbished ones it will save you some money and probably work just as well.

Not only is the scale accurate to the ounce but attractive and lightweight.

What can I say, it is a thermostat and it looks nice, I bought it for these reasons. I bought it in April of 2023 right after I had a leak repaired and the old thermostat looked very dated in a freshly painted room. It installed very easily and It really does look nice and new in the room. Once up I was pretty happy with it. I set a schedule and that's where the enjoyment stopped. As time went on I began to wonder if I had a leak or something, I had one in the past after all. It would not cool, and the temperature in the house would rise. I'd set it to 71 but the temp would slide degree by degree to 77 (which is what it was scheduled to hit at 11pm) and stay there for the night. Suddenly waking up freezing in the morning. The pillows in the bedroom were muggy and damp intermittently. Some days we'd sit at 77 degrees for no reason. The heat pump is running near 24/7 trying to cool the house....Luckily I am pretty DIY and troubleshooting for hobby so I bought gauges to monitor my unit and learned what Superheat and subcooling are. I determined that I don't have a leak! So what is it? I have an energy saver cycling box from the power company, I have that taken off, it takes a few weeks for them to do it. but my problem persists! I'm going mad, inject dye to search for leaks? I change filters, etc etc. anything i can. I'm debating draining the unit, perhaps the repair guy put in too much or incompatible oil!I begin to suspect the thermostat, all the internet says it couldn't be the thermostat, no no It could never.. But I say I say you know what let's reset the thing and strip away features. So I did, Reset it, turned off scheduling, wifi, and anything else "smart", got into the special menu and found "adaptive recovery" looked it up and determined this and scheduling were my problems! Because I wanted 72 from 8am to 5pm but the 77 at 11pm. The stupid "smart" algorithm thought that meant I want to be 72 in 8am and for the rest of the day slowly drift to 77 by 11pm and then freeze us half to death at 5am to be 72 again by 8am. If I set my schedule to all 72 degrees it will never leave 72 even on a "hold". I assume because of crap programming that adaptive recovery does not take into account the "hold" or manual input/changes which is bullcrap.I decided to see how badly programmed this algorithm was. I put a schedule on with crazy temperatures like 50F at 8am and 90f at 5am or something. The stupid thing would actually turn the HEAT ON to after 8am so that it be 90F by 11pm even though the cool setting was set to be 50F at that time. what a dumb program. Heating when it should be cooling!I was smart enough to figure this out and disable these features, I won't even use the schedule now Im too afraid too Which is same because I really wanted to let the AC drift off temp at night but its not worth it to trigger the "smart" alogrhtium's stupidity which seems to have the ability to override your manual temperature settings even without being turned on. I see no where to fully disable this "smart" features.I feel bad for anyone that calls HVAC specialists to try to fix these issues and they get talked into the a whole new system because of some programmers' poor programming skills.

This's 2 Stage cooling for Compressor and 2 Stage Heating , Reversing Valve or electrical heater.one speed fan ( Auto/On/Circulate ).mostly use for package unitElectrical RatingsTerminal Voltage (50Hz/60Hz) Running CurrentW Heating 20 Vac - 30 Vac 0.02 A - 1.0 AW2 (Aux) Heating 20 Vac - 30 Vac 0.02 A - 1.0 AE Emergency Heat 20 Vac - 30 Vac 0.02 A - 0.5 AY Compressor Stage 1 20 Vac - 30 Vac 0.02 A - 1.0 AY2 Compressor Stage 2 20 Vac - 30 Vac 0.02 A - 1.0 AG Fan 20 Vac - 30 Vac 0.02 A - 0.5 AO/B Changeover 20 Vac - 30 Vac 0.02 A - 0.5 AL/A Input 20 Vac - 30 Vac 0.02 A - 0.5 AU Unused

People complain about the setup but are usually technologically illiterate. Setup was fast and easy. Longevity wise it hadn’t disconnect from the wifi by itself at all. The mobile app itself is a little buggy. If you were to change the temperature In app sometimes it changes back to what the schedule was set at by itself. Other than that, it works flawlessly with both wifi and Apple HomeKit.

Excelente producto, funciona muy bien e increíble relación calidad-precio, tiene muchas funcionalidades como uso con Siri, que otros productos (incluso de la misma marca) no tienen. La instalación es super fácil, si ya tienes cableado con otro termostato hay que asegurarse que tenga el cable C.Yo instale el termostato desde la calefacción y solo necesite comprar cable eléctrico que tenía 6 cables de colores dentro. Muy muy fácil de instalar.La programación también es muy fácil. Si eres de México hay que poner en país a EUA para que te permita configurarlo pero al terminar la configuración, cambiar el país a México y ya te permite poner tu dirección para que veas la temperatura exterior.Excelente compra.

This product is rubbish. The wifi constantly disconnects making the device disappear from the app and from homekit. The worst problem is that the device will not accept wifi keys with special characters in it. Difficult to set up, unreliable networking. Keep clear of this guys!