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Honeywell Home

Honeywell Home RCHT9510WF T9 Wi-Fi Smart Thermostat + RCHTSENSOR Smart Room Sensor

    • Based on 1,624 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Dec 23
Order within 22 hours and 6 minutes
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Style: Wi-Fi Thermostat + 1 Sensor


Features

  • This bundle includes one Honeywell Home RCHT9510WF T9 Smart Thermostat and one Honeywell Home RCHTSENSOR Smart Room Sensor.
  • LIVE AND SLEEP SMARTER. Choose the temperature in a specific room, like the bedroom, to be exactly what you want it to be, to help get a better nights sleep. Or let the Smart Room Sensors automatically detect which rooms people are in and focus comfort where it matters automatically.
  • AMAZING SENSOR RANGE. The battery powered Smart Room Sensors utilize unique Honeywell Home technology to deliver an efficient signal up to 200 ft range. (Could be further depending on home construction).
  • MULTI-ROOM FOCUS. Dont be forced to choose one room over another, the T9 Smart Thermostat and Smart Room Sensors can handle multiple rooms to focus on.
  • ENERGY STAR certified. Help save energy, track your heating and cooling with monthly energy reports and get personalized tips on reducing energy use.
  • SAVE MONEY AND ENERGY. Adjust your ENERGY STAR certified thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with Auto Home/Away Scheduling. Save even more with possible inclusion in energy saving schemes from your utility provider. (Subject to availability in area)
  • DO IT YOURSELF SIMPLE INSTALL. With guided installation setup couldnt be simpler. The included power adapter is an easy-to-install, low-voltage alternative to a C-wire, so the thermostat is compatible with most homes.
  • COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire Required.

Brand: Honeywell Home


Model Name: RCHT9510WF T9


Special Feature: Temperature Display, Auto-Scheduling, Auto-Away Mode


Color: White


Brand: ‎Honeywell Home


Model Name: ‎RCHT9510WF T9


Special Feature: ‎Temperature Display, Auto-Scheduling, Auto-Away Mode


Color: ‎White


null: ‎Heating, Cooling


Connectivity Technology: ‎Wi-Fi


Voltage: ‎240 Volts


Control Type: ‎Touch


Control Method: ‎App, Voice


Connectivity Protocol: ‎Wi-Fi


Style: ‎Wi-Fi Thermostat + 1 Sensor


Backlight: ‎Yes


Specification Met: ‎Energy Star


Manufacturer: ‎Honeywell Home


Item Package Quantity: ‎1


Special Features: ‎Temperature Display, Auto-Scheduling, Auto-Away Mode


Date First Available: April 27, 2021


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • WORTH IT, BUT CAN BE A HANDFUL TO INSTALL!!
Style: A. Wi-Fi Thermostat
WARNING: it’s a DISSERTATION, but worth reading if you face a missing C/COMMON wire. T9 itself is Easy to install AS LONG AS YOU HAVE A ‘COMMON’ WIRE in YOUR EXISTING THERMOSTAT- in that case your install is probably 15 minutes. Else it can be HELL figuring out which one is your ‘common’ wire as you’ll need to find it inside the guts of your unit and run a cable from there to your new T9 (or if there’s an UNUSED CABLE from the usual 4-pack already running from your unit to your thermostat). This ‘common’ wire POWERS the thermostat in conjunction with ONE of the other 3 wires it uses - 4wires typically needed. I have a TRANE 4 Ton A/C Handler unit (2TEE3F37A100A) in Miami as we don’t use furnaces or boilers here - although our ‘air handlers’ (unit containing the cooling coils) do normally house a small electric heater that can easily handle the mild 5-10 short lived cold days we get to enjoy each year LOL. Anywho, my unit is about 12 years old and came with a Honeywell-made touch Screen thermostat TCON803AS32DA, which is NOT POWERED by the A/C Handler (Battery Powered) and thus, didn’t have this 4th C/Common wire in use. Figuring out which cable to use as the C/Common wire required 3-4 40-80 minute calls to RESIDEO (part of Honeywell) until I finally got a sufficiently knowledgeable REP to help me. I do have to say that they do try hard to help you and spend as long as needed to help you. It wasn’t until my last call I found the one that took me all the way to the ‘finish line’. So I had to open my A/C Handler and for each call log into a ‘Skype’ type of teleconferencing app (note: each technician used a completely different app to do it, so that was a bit strange, but I digress) so I could show them the ‘guts/inside’ of the machine and we could ‘figure out’ which cable going to the thermostat would be the ‘C’ - as my A/C UNIT’s WIRE TERMINAL BOARD didn’t show any terminals labeled ‘C’ - I’m guessing TRANE likes to keeps things mysterious so you have to call a technician who’ll charge $150 just for the visit (not here). So first 2 techs pointed me in WRONG direction. We used a VOLTMETER (if you don’t know what this tool is or how to use it, you fall into the ‘call a technician’ type of user and shouldn’t fiddle inside your A/C unit — unless it has a clearly marked C terminal). Anywho, you need a 24Volt terminal, but not just ANY 24V terminal (which first Tech picked one of 3 ‘W’ terminals because it had the required 24V, but still my Thermostat WOULDN’T TURN ON. So I was told I had a defective unit because I bought from Amazon, which isn’t an authorized distributor and probably mishandled unit by dropping it or being too hot in the WH. To which I responded, why? Because Home Depot (an authorized dist) wouldn’t drop it or keep it in a strict climate controlled environment? LOL. Anywho, I couldn’t wait another 2 days for Amazon to send me a new unit so I DID go to Home Depot and got one of their units - and guess what? It DIDNT TURN ON EITHER; so next Tech told me I had another defective unit after validating that the ‘C’ wire going to T9 did in fact provide 24V. At this point I hung up - I’m engineer and I know a thing or 2 about statistics, and chances of getting 2 BAD T9 UNITS from 2 completely different places are STATISTICALLY speaking, VERY SMALL. THIRD CALL was the charm. New guy told me all ‘W’ terminals are for HEATERS (I have 3), and the issue was that even though we were getting 24V at T9, it wasn’t COMPLETING THE CIRCUIT, so neither Thermostat nor A/C COMPRESSOR were going to work. At this point (20 minutes into back and forth) we took a 50% chance of hitting goal or BURNING something in my Air Handler by choosing as my C one of the cables going to the compressor since in theory, that would close the circuit; and BINGO it did indeed - T9 lit up. That wasn’t the end of the saga - then I had to call again - I lucked out with same guy - because the T9 had to be configured to know I had an A/C - it was only setup as a heater somehow. But a few clicks later, it was cooling. T9 Thermostat works as expected - and I REALLY LIKE IT and TOTALLY RECOMMEND IT - just like my old TCON803, it’s fully programmable and learns when to start cooling to reach your desired TEMP (although neither is extremely successful at it, but I suspect it’s my A/C which can’t handle the BRUTAL HEAT in South Florida in older homes lacking robust insulation). Also like my old 803, it RECIRCULATES THE AIR IN THE HOUSE 30% of the time even when the A/C COMPRESSOR IS OFF - this is KEY in keeping house cooler and not feeling like it’s too hot although thermostat shows DESIRED TEMP: we need airflow to feel temperature correctly. I like that back light is BLUE when cooling; ORANGE when heating, and WHITE when doing neither. THE BAD: the APP is what needs some work to be more useful - for instance, it could easily SHOW on BOTH ‘T9’ Thermostat and PHONE WHICH SENSOR(s) it’s using to ‘DRIVE’ / CALCULATE the INSIDE TEMP, yet that’s BURIED in one of the settings or the ‘PRIORITY’ menu, which is NOT INTUITIVE that you need to go here to find this - I have 3 additional sensors throughout the house and switch to master bedroom sensor at night to drive temp to sleep. To this end, both T9 and APP will show the ROOM NAME where Thermostat is located under the current inside temperature, making it completely misleading - in my case both T9 and APP displays will say FAMILY ROOM 71F, but it’s REALLY 69F in the family room; the 71F degrees are coming from a SENSOR IN MY MASTER bedroom, which runs hotter, and thus why I switch to it at night to drive temp. APP is VERY BUGGY TOO - it will often show BOTH WRONG INSIDE TEMP & WRONG TEMP SETTING, which requires killing app and starting it again. I have the latest iPhone 12 Pro Max and iOS version (14.7) as of this writeup, and super fast Wifi, so neither of those are the issue (oh!, and I’m referring to this happening while I’m home - I have no way of validating if the readings are outdated once I’m not home - I can validate them at home because the app values don’t match the ones on thermostat). Anywho, that was a novel, my apologies, but you got the whole story. Best of luck with your instal. Despite all the hassle, it was TOTALLY WORTH IT! ... show more
Reviewed in the United States on July 27, 2021 by Carlos
    • RC loop, gas heating pump and Blowing Hot air...
Style: A. Wi-Fi Thermostat
Review Image by Lori Lori
Review Image by Lori Lori
Don't usually write reviews but I struggled with this for a bit so wanted to leave it for anyone else. My old thermostat had a loop wire from R to Rc, on the new Honeywell it says don't put the loop in, slide the plastic to eliminate the loop and just use the R wire. Okay, did that, got it set up, everything seems good, got my sensors connected etc. Turned on the AC and it starts blowing hot air.. sometimes on a super hot day like today this will happen for a minute or two so I left it.. but it stayed hot and my house quickly heated up. Checked that AC/Cooling was running on the panel ✅ rechecked the wires and loop plastic part ✅ try the AC again.. still hot. Did a ton of searching online didn't find much helpful but finally came across someone talking to tech support forever ago and found this to be their and my solution: 1. First I had selected electric in config but my AC / system has and uses a gas heating pump for the heat system. On the thermostat itself (couldn't find this in the app), go to settings, Configuration: Advanced Setup . Here you'll find "Modify Configuration" where you can select the heating pump. I chose air to air but idk tbh It will then also ask for O or B (O/B on Cool) or on Heat. I chose O (O/B on Cool) Supposedly this changes it to help it select the right system when cooling. Now blowing cold air. Works well so far (now that it works)! ... show more
Reviewed in the United States on July 17, 2023 by Lori Lori
    • It has all the modern features, plus more! Yes, great remote temperature sensing included too!
Style: A. Wi-Fi Thermostat
Review Image by BigTexMan BigTexMan
Review Image by BigTexMan BigTexMan
I have been slowly converting my home to a "smart house". So, I have experienced a lot of smart device successes and failures! That said, the T9 has certainly been a success! By success, I mean it provides all the modern features you would want from a wifi connected device, plus a few features not offered by the competition. I found it easy to install and super easy to configure. I appreciate that it supports either 2.4 or 5 GHz wifi networks. I also found the display to be of high quality, and it was as easy to use as my iphone touch screen. I also use the Resideo phone app to control the thermostat. I found the app to be intuitive and easy to use. Here is what sets the T9 apart. The remote temperature sensors!!! We have two rooms that are often 3-5 degrees different from the rest of the house. One of them is our bedroom. I placed a T9 remote sensor in each of the two rooms, and the two rooms are already much more comfortable. Because the T9 allows you to setup the thermostat temperature control at the base unit on the wall, and/or at the remote sensors, I have greater control of the temperature in our house. When using the remote sensor(s), the T9 allows you to select which sensor is used to control the thermostat. The remote sensors can be configured to work in one of two ways: 1) become operational when they detect a person is in the room 2) just to operate as a temperature probe for the room. This is important because the T9 allows you to change how and when the remote sensors are used to control your HVAC system. As a "programmable" thermostat, you can select the desired temperature based on the day(s)-of-the-week and the time-of-the-day. However, the T9 also allows you to select which temperature sensor is used to determine the room temperature during different times of the day! Here is an example: We have three T9 temperature sensors (one at the thermostat display and two remote sensors). During the week days, we use the average of the temperature between all three sensors. At night we only is the remote sensor in our bedroom to control the temperature. On the weekend, we only use the remote sensor in my "office" if someone is in that room. Otherwise, the average of the other two sensors are used to control the temperature on the weekend. The ability to select which sensor (or combination of sensors) are used to determine the control of out HVAC system has been a game-changer, and it has really helped us make our home more comfortable! One more thing. We wanted a small thermostat that blended into the background of the wall. The T9 does this wonderfully. Unfortunately, many of the other modern thermostats want to make a bold statement with their glossy black appearance (also with their large size, and as they stick way out from the wall)! Making a bold statement may be fine for an expensive car, but it is not what we wanted from our thermostat. Last thoughts: Many other reviews cover the need for a "C-wire", or the fact that you may have to do some wall painting when replacing an older thermoset. I'll just remind you to consider these things before buying the T9. However, if you have isolated rooms in your house that vary in temperature, then the T9 with the optional remote sensors is a great option for you! Oh, BTW. The remote sensors stick to the wall using 3M Command strips (provided with the device). They are battery operated, and they claim to have over a year of battery life on AAA batteries. They connect to the main unit using a proprietary wireless connection. ... show more
Reviewed in the United States on December 23, 2022 by BigTexMan BigTexMan
    • Best Thermostat
Style: A. Wi-Fi Thermostat
Easy to install if you’re replacing an existing Honeywell product. Because the T9 links to 2.4 or 5 GHz for internet access, the WiFi integration is quick. Other models do not link to both/either scheme, so be careful. The T9 controls my home HVAC very well and we can control it through the app. I do not use the room sensors. This unit carries a higher price but it is worth it. Oh, be sure to also buy a wall plate. It is an attractive, high tech thermostat. ... show more
Reviewed in the United States on September 5, 2023 by GPM

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