---
product_id: 112759137
title: "Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist"
brand: "honeywell home"
price: "¥66416"
currency: JPY
in_stock: true
reviews_count: 11
url: https://www.desertcart.jp/products/112759137-honeywell-home-t9-wifi-smart-thermostat-smart-room-sensor-ready
store_origin: JP
region: Japan
---

# Wi-Fi enabled for seamless remote control Auto heat/cool switching for perfect comfort Smart Room Sensor ready for multi-zone focus Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist

**Brand:** honeywell home
**Price:** ¥66416
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay chill or cozy with smart control at your fingertips 📲

## Quick Answers

- **What is this?** Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist by honeywell home
- **How much does it cost?** ¥66416 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/112759137-honeywell-home-t9-wifi-smart-thermostat-smart-room-sensor-ready)

## Best For

- honeywell home enthusiasts

## Why This Product

- Trusted honeywell home brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Setup:** Intuitive installation with included power adapter and auto-detection of your HVAC system.
- • **Adaptive Auto Mode:** Geofencing and smart learning adjust heating/cooling automatically based on your lifestyle.
- • **Multi-Room Precision:** Add Smart Room Sensors to prioritize comfort exactly where you spend your time.
- • **Smart Comfort, Anywhere:** Control your home’s temperature from your phone or voice assistant—never get up to adjust again.
- • **Effortless Energy Savings:** Monthly Energy Reports + utility rewards keep your bills low and your eco-cred high.

## Overview

The Honeywell Home T9 WiFi Smart Thermostat combines advanced energy-saving features with intuitive touchscreen controls and voice assistant compatibility. It supports multi-room temperature management via optional smart sensors and adapts automatically to your schedule and location. Designed for easy DIY installation, it works with most HVAC systems and helps you earn utility rewards while optimizing home comfort.

## Description

Smart Thermostat. Auto change from heat to cool.

Review: I would have a hard time going to any other thermostat - We've had this thermostat for 3 years and it has more features than we use. So if you're into the scheduling temperatures and Eco settings and all of that this has it but we rarely use those settings so I can't speak on those. But I can say is we rarely if ever have connectivity issues with the Wi-Fi which I know from owning a few different smart thermostats. That's not something all companies can boast. It works seamlessly with our ring app so I didn't have to download a new app to control this while we're away. You can if you want to, but we found that what it can do through the Ring app is exactly what it we needed it to do. I cannot tell you how many times this has came in clutch when I'm laying in bed and I don't want to get up because I forgot to turn the system on/off. It's easy enough to use with the responsive touch screen that my mom who is not tech savvy can figure it out. Highly recommend! If we ever move I'm tempted to take it with me if I can't buy the exact same model.
Review: What I was looking for - I wanted a thermostat that I could program, not on that was self programming to my schedule (large internet company one). This is it! Works great. I have a heatpump system, and had no problems hooking it up. It has a weekly schedule if you want to set five days easily, or you can do all seven separately. I set mine for weekday and weekends (two schedules). Has four daily slots (rise, leave, home, sleep), but looks like you can add more. I bought two room extenders, and they work great. I have an older house, and the thermostat was in a hallway that was off the main area. The room extenders are great as they were easy to add and let you tell the thermostat what to weigh on heating/cooling decisions. Are you in the living room or your office all day? Set the thermostat to look at that sensor. Your bedroom hot at night? Set the schedule to look at the hall and bedroom when deciding to come on. The main reason I bought this was the auto switch between heat/cool and the fan circulate mode. I hate having to babysit the thermostat on freezing nights and hot days. The Auto switching is great. The auto circulate fan setting is great. It will circulate air about twenty minutes an hour just using the fan to keep the house at a good temperature so it doesn't have hot and cold spots on those times when you are on the edge of the temperature range. I use it for the night. This thermostat is not the most attractive, but I would recommend it. The only issue you may have is that the thermostat always seems to be back lit. Not sure if that is adjustable, but I love it because it acts as a soft light in the middle of the night for guests on the way to the bathroom. Great product.

## Features

- HELP SAVE ENERGY. See your energy use in the Monthly Energy Report, and help save even more with a schedule that adapts to your lifestyle, and by connecting with your utility efficiency program..EFFICIENCY AND REWARDS. Connect your Honeywell Home account with your utility to earn rewards each season for your energy efficiency.Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.
- AUTO HOME AND AWAY MODE. Adjust your thermostat from anywhere with your mobile device, or let your home automatically react to your schedule with geofencing.
- MULTI-ROOM FOCUS. Add Smart Room Sensors to focus the temperature on multiple rooms for comfort where it matters to you. (Sensors sold separately)
- SMART RESPONSE AND ALERTS. Intelligently learns your home’s heating and cooling patterns to deliver the right temperature at the right time, and sends you filter and temperature alerts.
- COMPATIBLE WITH: Forced air (gas, oil or electric), hot water and steam, and heat pumps with electric backup. Does NOT work with electric baseboard heat (120-240V). C-Wire Required.
- SMARTER, SIMPLER SETUP. Everything you need comes in the box, including a power adapter so that the T9 works in most homes. The T9 intuitively identifies your home’s heating and cooling type, making it easy to do it yourself.
- EFFICIENCY AND REWARDS. Connect your Honeywell Home account with your utility to earn rewards each season for your energy efficiency.
- Before purchasing, check to see if this thermostat is compatible with your home and to determine if your home needs a C-wire power adapter.
- Works with most heat/cool oil furnace systems. Will not work with heating only oil furnace systems unless a C-Wire is present.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07N83WK9T |
| Additional Features | Energy Star certified, Wi-Fi enabled, Wireless Smart Sensor ready |
| Best Sellers Rank | #104,136 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #120 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 1,850 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 | 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 Dimensions | 0.94"D x 3.7"W x 4.92"H |
| Product Style | A. Wi-Fi Thermostat |
| Shape | Rectangular |
| 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 Count |
| Voltage | 240 volts |

## Product Details

- **Brand:** Honeywell Home
- **Controller Type:** Temperature Control
- **Model Name:** RCHT9510WFW
- **Product Dimensions:** 0.94"D x 3.7"W x 4.92"H
- **Special Feature:** Energy Star certified, Wi-Fi enabled, Wireless Smart Sensor ready

## Images

![Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist - Image 1](https://m.media-amazon.com/images/I/51gkzDpYFpL.jpg)
![Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist - Image 2](https://m.media-amazon.com/images/I/61DwslMBrDL.jpg)
![Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist - Image 3](https://m.media-amazon.com/images/I/51WBOXk7l6L.jpg)
![Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist - Image 4](https://m.media-amazon.com/images/I/71mZvUygZEL.jpg)
![Honeywell Home T9 WiFi Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist - Image 5](https://m.media-amazon.com/images/I/71-blhuEdGL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: 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.**
A: 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.

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

**Q: Does it have circulate fan mode?**
A: yes--It has 3 settings for it--Auto, Circulate, and On .

**Q: 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?**
A: Cycle Rate and Fan Operation automatically default to the correct settings based on the equipment type selected.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I would have a hard time going to any other thermostat
*by V***E on January 17, 2026*

We've had this thermostat for 3 years and it has more features than we use. So if you're into the scheduling temperatures and Eco settings and all of that this has it but we rarely use those settings so I can't speak on those. But I can say is we rarely if ever have connectivity issues with the Wi-Fi which I know from owning a few different smart thermostats. That's not something all companies can boast. It works seamlessly with our ring app so I didn't have to download a new app to control this while we're away. You can if you want to, but we found that what it can do through the Ring app is exactly what it we needed it to do. I cannot tell you how many times this has came in clutch when I'm laying in bed and I don't want to get up because I forgot to turn the system on/off. It's easy enough to use with the responsive touch screen that my mom who is not tech savvy can figure it out. Highly recommend! If we ever move I'm tempted to take it with me if I can't buy the exact same model.

### ⭐⭐⭐⭐⭐ What I was looking for
*by B***. on March 17, 2022*

I wanted a thermostat that I could program, not on that was self programming to my schedule (large internet company one). This is it! Works great. I have a heatpump system, and had no problems hooking it up. It has a weekly schedule if you want to set five days easily, or you can do all seven separately. I set mine for weekday and weekends (two schedules). Has four daily slots (rise, leave, home, sleep), but looks like you can add more. I bought two room extenders, and they work great. I have an older house, and the thermostat was in a hallway that was off the main area. The room extenders are great as they were easy to add and let you tell the thermostat what to weigh on heating/cooling decisions. Are you in the living room or your office all day? Set the thermostat to look at that sensor. Your bedroom hot at night? Set the schedule to look at the hall and bedroom when deciding to come on. The main reason I bought this was the auto switch between heat/cool and the fan circulate mode. I hate having to babysit the thermostat on freezing nights and hot days. The Auto switching is great. The auto circulate fan setting is great. It will circulate air about twenty minutes an hour just using the fan to keep the house at a good temperature so it doesn't have hot and cold spots on those times when you are on the edge of the temperature range. I use it for the night. This thermostat is not the most attractive, but I would recommend it. The only issue you may have is that the thermostat always seems to be back lit. Not sure if that is adjustable, but I love it because it acts as a soft light in the middle of the night for guests on the way to the bathroom. Great product.

### ⭐⭐⭐⭐⭐ Works great with the app and supports remote sensors
*by M***R on November 4, 2023*

If you have never used a thermostat with remote sensors, you really don’t know what you are missing. It is great being able to place sensors inside of rooms instead of having to hope that your hallway is the right temperature. That really only leaves two choices of thermostats, the Honeywell T9/T10 or Ecobee. We recently moved into a brand new house with two separate HVAC systems, one for the main level and basement, one for the top floor with the bedrooms. The builder pre-installed Honeywell T6 thermostats, which left a lot to be desired. They worked well with the Ring system that came with the house, but that control is limited to the mode and temperature. You either need to use the touchscreen on the thermostat or the app to make the most of it. Due to the way the T6 was installed in contractor mode, I could not get them to connect to the Resideo app. The T6 also does not support remote thermostats, which really is a game changer. There are a couple of differences with the T6 compared to T9. T6 has battery backup (I don’t really care as long as it doesn’t lose its programming). T6 connects to Z-Wave, which makes using it with a security system easier (plus Ring only supports two thermostats if they are connected to Z-Wave). Both connect to wifi and both should work with the Resideo app, but I could not get the T6 into the right mode to set it up. T9 has remote thermostats, T6 does not. I wanted more control so I decided to upgrade to the T9. The best part is that it was literally plug and play. I removed the T6 and plugged the T9 into the same wall adapter. I was able to immediately connect it to the Resideo app, which is really what I wanted. The Resideo app is actually not bad, it gives me full control over both thermostats. We have purchased additional remote sensors and have two for each thermostat, I really like being able to place them in bedrooms since we usually have our doors closed. I work from home and have one sensor in my office, one in our living room. I did find that occupancy detection doesn’t work as well as I had hoped because I use a space heater in hopes of saving money and that means the office is warmer than the rest of the house. In the summer and on weekends it works a lot better. With the Resideo app you can easily tweak the settings from anywhere and you can program each day individually. If days match it groups them, but they don’t have an easy way to remove customization for a day. That is nice because I try to go into the office one day a week. I wish I could program heating vs. cooling different for things like the fan because in the winter I want it set to circulate upstairs, in the summer I want the fan off on the top level during the day so I’m not moving the hot air around as much (those vents are in the ceiling), in the winter I want more air circulation. In my previous house we had installed an Ecobee 3, the first model with Apple HomeKit support (which we never used). The Honeywell T9 is competitive with the Ecobee in most of the features you will actually use, but that Ecobee had a couple of features the T9 does not. First, Ecobee supports accessories, for example, you could use it to control a whole house humidifier (I wanted one but never bought one). T9 doesn’t do that. Second, Ecobee can use occupancy to control whether your house is in home or away mode, which would be useful for our top level since nobody is in the bedrooms during the day. T9 uses geofencing, which has a lot of disadvantages in comparison (everybody needs it on your phone, cannot distinguish between home and on that level). Newer Ecobee models add even more sensors and even Alexa. Ecobee also lets you tweak how often the fan runs, Honeywell just has circulate, which runs on their schedule. Ecobee also looks more premium than Honeywell. The T9 is functional but not as modern of a design. Their sensors are large white blocks that really stand out when mounted on a wall. Considering all of the white Ring products I have, it kind of fits in, though. I probably would have chosen Ecobee over T9 if the price was similar, but Ecobee is nearly double the price and their remote sensors are more expensive as well.

## Frequently Bought Together

- Honeywell Home T9 WIFI Smart Thermostat, Smart Room Sensor Ready, Touchscreen Display, Alexa and Google Assist
- Honeywell Home RCHTSENSOR-2PK, Smart Room Sensor works with T9/T10 WIFI Smart Thermostats

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-23*