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.

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Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist

Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist

Product ID: 112759137

Details

Brand
Honeywell Home
Controller Type
Temperature
Model Name
RCHT9510WFW
Product Dimensions
0.94"D x 3.7"W
Special Feature
Energy Star

⚡Energy Star certified for efficient savings

📱Wi-Fi enabled for remote control

🌡️Smart Room Sensor ready for multi-room comfort

NT$13744

Duties & taxes included

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Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌟 Stay cool, save smart — the future of home comfort is in your hands!

DIY FRIENDLY SETUP - Intuitive installation with included power adapter and easy system detection—no pro needed.
AUTO HOME AWAY MODE - Geofencing technology adjusts your home’s climate based on your location for ultimate convenience.
SEAMLESS VOICE CONTROL - Works flawlessly with Alexa and Google Assistant for hands-free temperature adjustments.
SMART MULTI ROOM COMFORT - Add sensors to target temperature control exactly where you want it most.
EFFORTLESS ENERGY SAVINGS - Adaptive scheduling and monthly energy reports help you cut costs and carbon footprint.

The Honeywell Home T9 WiFi Smart Thermostat combines Energy Star certified efficiency with smart multi-room sensor compatibility, enabling precise temperature control and energy savings. Featuring a responsive touchscreen, voice assistant integration, and geofencing auto-adjustments, it offers a seamless, customizable climate experience. Designed for easy DIY installation, it supports most heating and cooling systems and connects to utility programs for seasonal rewards.

Specifications

ASIN	B07N83WK9T
Additional Features	Energy Star certified, Wi-Fi enabled, Wireless Smart Sensor ready
Best Sellers Rank	#66,646 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #71 in Home Programmable Thermostats
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 4.4 out of 5 stars (1,852)
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	7.2 ounces
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.
Number of Items	1
Power Source	Electric
Product Style	A. Wi-Fi Thermostat
Shape	Rectangular
Specific Uses For Product	Furnace
Temperature Control Type	Heating
UPC	085267345637
Unit Count	1 Count
Voltage	240 volts

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