Can the remote sensor be the primary temperature setting? I want the room that the remote sensor is in to be the desired temperature (no averaging).

Yes, that is possible... you can specify which sensor the base unit uses to measure the temperature... For example, when I go to bed at night, I make my bedroom the assigned sensor, so that regardless of what the temp is downstairs, the temp in my bedroom will be regulated to the temp that I have set.

Can I set this thing to a specific temperature and have it turn on the heater or ac based off of that temperature?

Hi There, The changeover feature (also referred to as Changeover) allows your thermostat to automatically switch from heating to cooling, or vice versa, depending on the temperature in your home. The thermostat has a mandatory 1.5° differential or “swing”, so even if you set your thermostat heating temp to 70° and the cooling temp to 70° and turn changeover on, the temperature must rise or fall at least 1.5° before the thermostat will switch modes. (For the previous example, the temperature would have to climb to 71.5 degrees). I Hope this helps. -John

is the T9 compatible with dual zone systems and will I need two to operate effectively? Currently two thermostat controllers in my home.

Yes, you will need two T9s to operate two systems.

Is the thermostat programable?

The Honeywell Home T9 WIFI Smart Thermostat with 1 Smart Room Sensor is programmable. You can have up to 6 periods per day. If you have additional questions, please reach out to us at 1-800-633-3991.

Smart Thermostat T9 Wht | Desertcart South Korea

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Description

🌡️ Stay cool, save cash, and control your comfort like a pro!

SMART MULTI ROOM FOCUS - Utilize Smart Room Sensors to monitor and balance temperatures across multiple rooms, ensuring personalized comfort where it matters most.
SLEEP SMARTER LIVE BETTER - Set specific room temperatures for better sleep and comfort, with sensors that automatically detect occupancy to optimize your environment.
EFFORTLESS DIY INSTALLATION - Easy setup with included power adapter and guided instructions, compatible with most forced air and heat pump systems (C-wire required).
CONTROL YOUR COMFORT ANYWHERE - Adjust your home's temperature remotely with the intuitive Honeywell Home app or voice assistants like Alexa and Google Assistant.
ENERGY SAVINGS THAT PAY YOU BACK - ENERGY STAR certified with eligibility for energy rebates and Demand Response rewards—save money while reducing your carbon footprint.

The Honeywell Home T9 Smart Thermostat offers advanced multi-room temperature control via smart sensors with up to 200 feet range, remote app and voice assistant compatibility, and ENERGY STAR certification for efficient energy use. Designed for easy DIY installation on most HVAC systems, it supports energy rebates and demand response programs to maximize savings while enhancing home comfort.

Specifications

Manufacturer	Honeywell Home
Model Number	RCHT9610WFSW2003 T9
Package Dimensions	23.3 x 18.6 x 7.8 cm
Material	Plastic
Color	white
Size	No Size
Special Features	Built-In Speaker
Power Source	Battery Powered
Voltage	240 Volts
Battery Type	Alkaline
Lithium Battery Packaging	Batteries contained in equipment
Package Weight	0.65 Kilograms
Batteries Required	Yes
Batteries Included	Yes
Brand Name	Honeywell Home
Item Weight	1.32 Pounds

Reviews

E**I

great product!

28.01.2026

S**D

Product voltage discrption is wrong

14.01.2024

C**A

Excelente

Es bueno y fácil de usar, manejo todo desde la app en el celular

24.08.2025

B**T

Not for normal domestic heating systems

6.12.2025

D**Z

Super easy install, works great!

16.06.2019

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