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Honeywell Home T9 White Smart Compatible Room sensor with Wi-Fi Compatibility

Name: Honeywell Home T9 White Smart Compatible Room sensor with Wi-Fi Compatibility
Brand: Honeywell Home
SKU: 5005315809
Rating: 4.1 (29 reviews)

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Add Smart Room Sensors around your home so your T9 Smart Thermostat can see each room’s temperature and humidity. Choose specific rooms to regulate the overall house or let the sensors focus on rooms people are in with motion sensing technology. Smart Sensors have a signal that can reach up to 200 feet and penetrate walls and floors across the home. This increases the quality of the data, allowing for greater accuracy and comfort control. Smart Room Sensors help you experience the right temperature in the right rooms. Get whole home temperature control based on room occupancy, or prioritize specific rooms. Simple and discreet, these battery powered sensors have a long range to control the whole home. (To be used with T9 Smart Thermostats.)

EXPAND YOUR COMFORT: Smart Room Sensors work with the T9 Smart Thermostat to sense temperature and humidity from multiple rooms.
WELCOME TO JUST RIGHT: Sense the temperatures in the rooms that matter.
FOCUS ON THE ROOMS PEOPLE ARE IN: Let the sensors focus on rooms people are in, using motion detection allowing you to stay comfortable as you move room to room.
INTELLIGENT MOTION DETECTION: Allows the smart room sensor to tell the difference between someone passing through or spending time in a room.
SIMPLE INSTALL FOR A DIY PROJECT: Smart Room Sensors are easy to set up without any tools required (Use the Resideo app to connect).
CONTROL IT YOUR WAY: Control the T9 and Smart Room Sensors using the Resideo app to control your home anytime, anywhere.

General
Sub-Brand	T9	Control Type	Touch screen
Package Contents	1 sensor, 2 AAA batteries, adhesive mounting strips, and quick start guide	Series Name	Smart Room Sensor - 1 Pack
Package Quantity	1	Temperature Displayed	Current and setpoint/desired temperature
Type	Room sensor	Manufacturer Color/Finish	White
Battery Type	Alkaline

Dimensions
Display Size (Inches)	4

Features
Displays Weather Forecast	No	Filter Monitor	Yes
Auto-Away Mode	Yes	Batteries Included	Yes
Proximity Sensor	Yes	Temporary Vacation Override	Yes
Outdoor Weather Sensor	No	Mounting Hardware Included	Yes
Energy History Indicator	No	Auto System Change from Heat to Cool	Yes
Supports Single-Stage Heating	Yes	Backlit Display	No
Supports Single-Stage Cooling	Yes	High/Low Desired Temperature Limits	Yes
Supports Multi-Stage Heating	Yes	Program Periods per Day	4
Supports Multi-Stage Cooling	Yes	Hold Temperature Button	Yes
Hub Required	No	Early-Start Comfort Function	Yes
Built-In Z-Wave	No	Daylight Savings Time Ready	Yes
Room Sensor Included	Yes	Voice Controlled	No
Matter Certified	No

Compatibility
Compatible with Oil Fuel Types	Yes	Works with Amazon Alexa	Yes
Compatible with Gas Fuel Types	Yes	Works with iOS	Yes
Compatible with Electric Fuel Types	No	Works with Android	Yes
Compatible with 24V Heating	Yes	Wi-Fi Compatibility	Yes
Compatible with 24V Cooling	Yes	App Compatibility	Yes
Compatible with Aux/Emergency Heat Pump	Yes	Works with the Google Assistant	Yes
Compatible with Humidifier/Dehumidifier	No	Bluetooth Compatibility	No
Works with Apple HomeKit	No	Smart Compatible	Yes
Works with SmartThings	No

Warranty
Warranty	2-year limited

Certifications
CA Residents: Prop 65 Warning(s)	No	Safety Listing	UL safety listing
ENERGY STAR Certified	No

Miscellaneous
UNSPSC	41112200

Check out the Best Selling Smart Thermostats on Lowes.com

Review

4.1 out of 5

29 Reviews

92% Recommend this product

Ratings may include incentivized customer reviews.

29 Customer Reviews

Sort By

got them cheap but failure rate way too high

Would Not Recommend

bought 8 of these for a couple of different locations, had 3 out of 8 completely fail to connect and I now have to try and return but so far Honeywell has been a hassle to try and deal with. If you have alternatives use them, for me it gave me an excuse to change to the google thermostat.

JustWesAugust 13, 2026
Verified Purchaser

Was this Review Helpful ?

Response from Resideo Team

Hi JustWes, we are sorry to hear about this and apologize for the inconvenience. Our tech support team is available 7 days a week and we will be happ... Read More

Resideo TeamAugust 14, 2026

resideo

Perfect for Balancing Room Temps

Would Recommend

This sensor was incredibly easy to set up and fixed the cold spot in my home office instantly. The Wi-Fi integration is seamless, and it provides very accurate readings through the app.

Mb19April 2, 2026
Verified PurchaserIncentivized

Was this Review Helpful ?

Works great

Would Recommend

Works great with the T9 I have. Ive got these in 4 rooms so I can change the temp based on where needs it

jmbeltMarch 2, 2026
Verified Purchaser

Was this Review Helpful ?

Easy to use!

Would Recommend

Needed a new sensor to use with a Honewell smart thermostat. Connects to the thermostat in 10 seconds.

nopeJanuary 2, 2026

Was this Review Helpful ?

Junk

I bought a T9 Thermostat plus a 2 pack of RCHTSENSOR from the same big box retailer. My professional HVAC guy installed the T9 which works just fine. He could not get the sensors to connect earlier this week after spending an hour on the issue. He told me to return them. I wanted them to work, so I wasted over an hour of my own time tonight trying to get them to connect. I reset them, pulled the batteries, tried new batteries, etc. These are absolute junk and not what I would expect from a...

Sisu15July 13, 2025

From resideo.com

Response from Tech Support

Hi Sisu15, we are sorry to hear about this and will be happy to help getting your thermostat and sensors connected. Our Support Center link at the top... Read More

Tech SupportJuly 15, 2025

Super Sensor

Would Recommend

These sensors work great. We have two for setting our temps in the rooms we occupy most, which are 30' away from the t-stat in a hallway. That doesn't make any sense. Well, these sensors enable us to set the temp where we relax and spend our time, without having to constantly adjust the t-stat.

konzJune 8, 2025

From resideo.com

Performs correctly

Would Recommend

It does the job it was designed to do.

A satisfied customerMay 16, 2025
Verified Purchaser

Was this Review Helpful ?

Sensors won't connect

Both sensors fail to connect from the 2 pack while the one sensor that came with the T9 connects just fine. Will change my review of I can get this remedied.

HVACGaryJanuary 26, 2025

From resideo.com

Response from Customer care

Hi, we appreciate your feedback and would like the opportunity to help. Our Support Center link at the top of the page has all the ways you can get in... Read More

Customer careJanuary 27, 2025

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		Type	Room sensor
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