How can this device supply a different temperature in one room versus another? The heating system doesn't send heat to one room and not another.

It doesn't. What it does is tells you which room temperatures to prioritize for your settings. For example, for my sleep settings I have set my thermostat to prioritize the Master Bedroom sensor. So it will heat/cool based on that sensor, instead of the thermostat sensor which is sitting in the hall and isn't really related to my sleeping comfort at all. You can also prioritize multiple locations. So if I wanted to, I could tie the sensors for all 3 bedrooms to my sleep settings and it would average out the sensor readings for all 3 bedrooms.

If i don’t care about using an app or alexa, etc does the thermostat need wi-fi to operate with a sensor or do they connect directly?

The Honeywell Home T9 WIFI Smart Thermostat does not require Wi-Fi connection to operate the sensors. Hope this helps! -Joey

Does it have circulate fan mode?

yes--It has 3 settings for it--Auto, Circulate, and On .

we chose not to add any extra cycles, we later found 4 cycles were programmed with numbers nobody would've set, so the t9 programs itself. why?

Cycle Rate and Fan Operation automatically default to the correct settings based on the equipment type selected.

Honeywell Home T9 Wifi Smart Thermostat Smart Room Sensor Ready

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Description

🌍 Stay smart, save energy, and never come home to the wrong temperature again!

PLUG PLAY SETUP - Easy DIY installation with included power adapter and auto HVAC system detection.
TOTAL COMFORT CONTROL - Smart Room Sensors let you target the exact rooms that matter—no more guessing.
ADAPTIVE ENERGY SAVINGS - Monthly Energy Reports + utility rewards keep your bills low and your home green.
EFFORTLESS REMOTE ACCESS - Control your thermostat from anywhere with the intuitive Resideo app and voice assistants.
SMART ALERTS AUTOMATION - Auto Home/Away modes and filter alerts keep your system optimized without lifting a finger.

The Honeywell Home T9 Wi-Fi Smart Thermostat combines intuitive touchscreen controls with smart room sensor compatibility to deliver personalized comfort and energy savings. Featuring adaptive scheduling, geofencing, and seamless integration with Alexa and Google Assistant, it empowers you to manage your home's climate from anywhere. Energy Star certified and designed for easy installation, the T9 is perfect for professionals seeking efficient, connected home comfort.

Specifications

ASIN	B07N83WK9T
Additional Features	Energy Star certified, Wi-Fi enabled, Wireless Smart Sensor ready
Backlight	Yes
Best Sellers Rank	#21,079 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #26 in Home Programmable Thermostats
Brand	Honeywell Home
Brand Name	Honeywell Home
Color	White
Connectivity Protocol	Wi-Fi
Connectivity Technology	Wi-Fi
Control Method	Voice
Control Type	Temperature Control
Controller Type	Temperature Control
Customer Reviews	4.4 out of 5 stars 1,831 Reviews
Display Type	graphical lcd touchscreen
Finish Types	Matte
Global Trade Identification Number	00085267345637
Included Components	Installation guide, Screws and anchors, Thermostat and Mounting Hardware, UWP Wall Plate, Wire labels
Item Dimensions D x W x H	0.94"D x 3.7"W x 4.92"H
Item Type Name	Honeywell Home T9 Wi-Fi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist
Item Weight	0.45 Pounds
Manufacturer	Honeywell Home
Manufacturer Part Number	RCHT9510WF2001
Manufacturer Warranty Description	2 year limited warranty.
Material Type	Plastic
Model Name	RCHT9510WFW
Model Number	RCHT9510WFW2001
Mounting Type	Wall Mount
Number of Batteries	2 AAA batteries required.
Power Source	Electric
Product Dimensions	0.94"D x 3.7"W x 4.92"H
Product Style	A. Wi-Fi Thermostat
Shape	Rectangular
Smart Home Compatibility	Smart Home Compatible
Special Feature	Energy Star certified, Wi-Fi enabled, Wireless Smart Sensor ready
Specific Uses For Product	Furnace
Temperature Control Type	Heating
UPC	085267345637
Unit Count	1.0 Count
Voltage	240 Volts

Reviews

M**R

4.11.2023

B**.

17.03.2022

A**E

23.12.2020

G**E

6.04.2026

C**S

27.07.2021

B**N

23.12.2022

S**N

13.06.2024

C**T

3.10.2025

A**É

8.01.2021

O**R

16.02.2022

A**.

3.07.2022

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