Honeywell Home RCHTSENSOR-1PK, Smart Room Sensor works with T9/T10 WIFI Smart Thermostats

After our furnace died during the coldest week yet this winter, we had to finally bite the bullet and replace it. The new one is crazy efficient and works so much better than the old one, but that in itself raised a new problem where some rooms are now sweltering while others are lagging slightly behind. Enter this cute like smart sensor. We placed one in the room furthest from the thermostat and within the first day, noticed a big difference and figured we'd add one more for the opposite end of the first floor. We then set the thermostat to average these readings. You can also have it adjust for only when rooms are occupied, or manually override very easily through the interface, but for us the average feature is working best. You can add up to 20 sensors, which I feel would be crazy overkill for our 1800'ish sq/ft first floor, so we'll see how this do over the rest of the winter. Overall very pleased with easy installation in the thermostat interface and if you can attach a command strip, then mounting them in the desired room is a breeze. I'll revisit the review if anything strange comes up.

Thermostat works perfectly. Well made and accurate.

Easy to install and configure. The Resideo app allows sensor control to be modified on the fly as well as per schedule. The devise is relatively small with no annoying display so it can be incorporated into many rooms without distracting from their appearance. The averaging of temperatures among rooms makes the functionality a must have. The comfort these provide makes it well worth the money.

If you have a home with Honeywell T9 or T10 Thermostats, this is a great remote sensor for nearby rooms. In my case, I own a vacation home in Sun City. My home, a Voyage model has two bedrooms and three heating/cooling zones. The thermostat in question is in the common hall just outside the guest bedroom doors. When my family visits, they close the doors at night, making the thermostat unable to read the temperature in the two rooms. The sensors (I needed two) are very easy to set up and give them priority over the main thermostat. I just installed them this last week and they worked exactly as I hoped. After the family left, I returned priority to the main thermostat. Highly recommended!

No fault of the seller but it seems there are some sensors that are not compatible with the newer T-9 thermostats but are still compatible with the T-10 thermostats. I just got of the phone with Honeywell customer support and they told me to return these and orchard purchase thru the Resideo manufacturer website so that I can request to purchase a compatible sensor based on the model number of my T-9 thermostat.

This device is actually great when it works. I have two of them connected to my T9 thermostat and they work as intended. The problem is the fact that the manufacturer made changes to the thermostat and/or the sensor since I originally purchased the T9 in 2021, and the extra sensor in 2023. There is no way of telling which version you are buying by looking at the product description and the packaging. I called their customer service when I was not able to establish a connection. The rep wanted to start a video call so she could see the labeling on both products. However, their video call system did not work on my phone so I was asked to email pictures of both as well as proof of purchase. I did not understand why they would need the proof of purchase just to tell me if the two devices were compatible. She finally agreed to check compatibility first and then ask for proof of purchase, if needed. It turns out they need it for a possible replacement. I still don't get it as I bought this on Amazon and not from the manufacturer directly. I emailed the pictures, was asked for another picture, i.e., the label inside the battery compartment of the sensor which I sent. By the way, customer service answered the phone right away so I give them credit for that. The rep needs to improve her listening skills and use her judgement instead of just following the script she is given. For instance, I told her that the reset procedure listed on the company's website (press the connect button for 15 seconds and wait for the orange light) did not work on my device. She could have easily asked me for the number printed after the model number instead of asking for pictures. That would have solved the problem. After that I did some research online and realized that this is a known issue: Series 1 of the thermostat is not compatible with series 2 of the sensor so I returned the product. As always Amazon was great with the return request. In summary, do not buy this if you bought the T9 couple years ago and would like to add another sensor, like I did. Resideo website has the old version available for purchase so I may buy one. In my opinion, it is a poor manufacturing practice to make changes which are not backwards compatible.

This is very helpful by monitoring the temperatures of each bedroom. I did have one that kept losing range but once I swapped it out, I haven’t had to change that battery for many months. I use these with my t9 to balance out the house. This is a great addition to dial in the temp you want. Very easy to install. You just put the battery in, check initial range, then move it to the location you want.

These addons are great complementary equipment when you have a multizone house that you are trying to heat or cool. I have the T9 thermostat and these connected beautifully. They function well in the Honeywell (Residio) app and they are small and easy to conceal on walls in the areas you are trying to get additional temperatures on. When you go to program the schedule, you can tie in these sensors depending on time of day and room averages you want to account for.

I already had a Honeywell smart thermostat (hardwired to furnace) and one remote sensor for about 2 years now. Never any problems. I just bought an additional sensor for another part of the house. They are a bit pricey but they work great. Signal strength is good, never any issues. They take 2 AAA batteries in each sensor and they last a long time (about 2 years so far now). Extremely easy to install.

Muy bueno pues detecta la presencia humana y la temperatura en el área y se complementa perfectamente con el termostato inteligente T8 .

for T9 , works well

AAA

I am writing to express my dissatisfaction with the Honeywell Home RCHTSENSOR-1PK Smart Room Sensor. Unfortunately, the product has not met expectations and does not function as advertised. The sensor only detects motion and fails to recognize occupancy if someone is sitting at a desk working or lying still in the room, such as when sleeping. This limitation significantly reduces its usefulness, as it does not effectively account for actual room occupancy under normal living conditions. This crucial detail was not highlighted in the product description, leading to a misleading purchase decision. I believe this omission is unacceptable, as the product cannot deliver the intended value in real-world scenarios. I kindly request a refund for this product, as it does not perform as expected and fails to align with the advertised functionality. Please let me know the steps to initiate the return and refund process. Thank you for your understanding. I look forward to your prompt response.