Insteon Wireless Thermostat
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Rewards: 79 Points

Insteon Remote Control Portable Thermostat

Wireless Climate Control for Your Whole Home
  • Use as a stand-alone Insteon temperature and/or humidity controller
  • Use as a wireless sensor and controller of the Insteon Thermostat
  • Use with I/O Lincs as a wireless thermostat (especially helpful if you have fewer than 4 wires going to your existing thermostat)
  • Make the temperature comfortable where you are
  • Battery-powered
  • Add the remote temperature sensor to monitor fish tanks, pools, spa, etc.


REWARDS: 79 points
Frequently Bought Together:

Price For Both: $179.98

  • Details
  • Specs
  • Reviews
  • Manuals
  • What's Included
  • Remote Control

    Control your thermostat from anywhere - in your home from an Insteon Keypad or on the road from your Smartphone with the Insteon Hub.

    System Support

    Our range of thermostat offerings ensures that even the most custom HVAC installation can be controlled.


    Insteon Thermostats fully integrate with your Insteon automation system. Automatically control duct dampers, ceiling fans and more.


    When one thermostat isn't enough, add Insteon Wireless Thermostats for additional temperature monitoring and throughout-the-home control.

    Smartphone Remote.

    Because carrying the thermostat around is just silly.

    When you install an Insteon Thermostat in your home and link it to the Insteon Hub, every smartphone and tablet you own becomes a remote control. It doesn't matter if you're hiding under the covers on a cold winter morning or running late out of the office on a sweltering summer evening, you can adjust the temperature from anywhere and ensure that your home is comfortable all the time.

    Winter Weather Watch

    Keep the blizzard outside and ensure your home is toasty warm by turning up the heat remotely.

    Summer Sun

    Cool down the house when you're on your way home on a blistering summer afternoon.

    Bon Voyage

    Turn off the AC even after you've left. Especially helpful for impromptu expeditions.

    Control on Apple Watch

    With the Insteon App on Apple Watch, you don't even need to reach for your iPhone to adjust the Thermostat. Change your Thermostat mode right on your wrist. (Disclaimer "Mode control only. Set point and fan currently unavailable from Apple Watch. Feature will be added in a future software update.”)

    Supported Systems

    A wide range of heating and cooling devices.

    Insteon Thermostat works with most heating and cooling systems found in homes and many businesses. With the exception of heat pumps and sophisticated triple-stage systems, your home's heating and cooling system is most likely compatible with Insteon Thermostat. In addition, Insteon Wireless Thermostat gives you control over line-voltage and millivolt heaters.

    Insteon Features

    When is a thermostat more than just a thermostat? When it's an Insteon Thermostat.

    Duct Dampers

    Add duct dampers to control the flow of conditioned air on a room-by-room basis with IO Module

    Learn More


    Use sensors on doors and windows to prevent the AC from cooling the entire neighborhood when a door or window is left open

    Learn More

    Line Voltage & Millivolt

    Integrated with line voltage systems using Micro Modules and vintage millivolt heaters with IO Module

    Learn More

    Ceiling Fans

    Automatically circulate conditioned air when you run the AC or heater by spinning up ceiling fans

    Learn More


    Multi-zone ready.

    You don't need to have a mansion to benefit from a multi-zone thermostat system. With the Insteon Thermostat, you can connected up to two additional Insteon Wireless Thermostats for remote temperature monitoring in your home. Place one in the hottest room in the house and use it as a basis for cooling your home. Add one to your guest bedroom and let the in-laws have a say in household temperature. Or simply move the temperature sensing from a dark and deserted hallway to the center of your home.

    Venstar Adapter

    Extend the functionality of your existing thermostat.

    The Venstar Thermostat Adapter connects to the accessory port on the bottom of select Venstar and Totaline thermostats³. With the Vesntar Adapter installed, your Insteon home can read the temperature, change modes and adjust the heat and cool set points. And if you have a heat pump or advanced dual-fuel system, the Insteon Venstar Adapter inherits the capabilites of your thermostat, give you Insteon control over sophisticated HVAC systems.

    Wired Thermostat

    Wired Thermostat for Heat Pumps

    Wireless Thermostat

    Venstar Thermostat Adapter3

    Control and automate your 24V-based heating and cooling

    24V AC
    1 and 2 Stage Heat
    1 and 2 Stage Cooling
    Forced Air Fan

    Control and automate your 24V-based heat pump heating and cooling system

    24V AC
    1 Stage Heat
    1 and 2 Stage Cooling
    Forced Air Fan
    Heat Pumps Only
    Emergency Heat

    Anywhere-in-the-home temperature monitoring and line voltage system support

    2 AA Batteries
    Optional 5V Power Supply
    Millivolt Heaters1
    Line-Voltage Heaters2

    For Systems with existing Venstar Thermostats including those with heat pumps

    24V AC
    1 and 2 Stage Heat
    1 and 2 Stage Cooling
    Forced Air Fan
    Heat Pumps

    1. Control of millivolt heaters requires an Insteon IO Module and at least one dual-band Insteon device.
    2. Control of line voltage heaters requires an Insteon Micro Module.
    3. Venstar Thermostat Adapter is compatible with Venstar T1700, T1800, T1900 and Totaline P374-1700, P374-1800, P374-1900, T2700, T2800 and T2900 thermostats.

  • General
    Product Name: Insteon Wireless Thermostat
    Brand / Manufacturer: Insteon
    Manufacturer Product No.: 2441ZTH
    UPC: 813922010800
    Warranty: 2 years, limited
    Insteon Powerline Mesh Repeater: No, uses battery power
    Insteon RF mesh repeater: Yes, with DC power adapter (sold separately)
    Insteon controller: Yes
    Insteon responder: No
    Maximum links/scenes: 400
    LED: Dual-color red/green, blinks during setup
    LED Brightness: N/A
    Local Control: No
    Commands Supported as Controller: On Off
    Commands Supported as Responder: N/A
    Software configurable: Yes
    RF Range: Up to 50 meters open air
    Phase Bridge Detect Beacon: No, RF only device
    Insteon Device Category: 0x05 (all frequencies)
    Insteon Device Subcategory: 2441ZTH (915MHz) 0x0A
    Mounting: Wall mount or tabletop stand
    Wire Connections: N/A
    Screw Clamp Connections: Yes, 4 position (external temperature sensor and DC power adapter)
    Case Color: White
    Set Button: 1
    Plastic: UV stabilized ABS
    Beeper: Yes
    Beep on Button Press: Optional (off by default)
    LED: 1 dual-color red/green, blue LCD backlit display
    Dimensions: 3.4" H x 5.7" W x 3" D
    Weight: 0.55 lbs (8.8 oz)
    Operating Environment: Indoors
    Operating Temperature Range: 39° to 104°F (4° to 40°C)
    Operating Humidity Range: 0-90% relative humidity
    Storage Temperature Range: -4° to 158°F (-20° to 70°C)
    Voltage: 2 AA batteries (included) or 5VDC adapter (sold separately)
    Frequency: N/A
    Load Type(s): N/A
    Maximum Load: N/A
    Minimum Load: N/A
    User Replaceable Fuse: No
    Hardwired Remote Control: N/A
    Retains All Settings Without Power: Yes, saved in non-volatile EEPROM
    Standby Power Consumption: 22 micro-Amps
    Certifications: FCC, IC Canada, EN International
    FCC ID: SBP2441ZT
    Safety Approval(s): N/A, low-voltage device

  • Reviews 1 - 10 of 17

    1. 1
    2. 2
    Works well; but try to use it with the newer 6v power supply Review by Luke
    Works well; but try to use it with the newer 6v power supply

    I'm using this to control a HVAC duct booster fan in order to pump air to my finished attic. It works very well for me. It has been reliable though it has failed to turn off the booster fan a couple of times (rare though). The device is far away from the relay (2 floors away) so I suspect this would work better if closer or if I had more devices.

    - Looks nice
    - Temperature and humidity readings are accurate (I cross-checked it with some other sensors)

    - Doesn't have a good way to turn on the backlight. It comes on when you press a button on the thermostat (such as the temperature up button) but that means you have to increase the temperature to get the backlight on. I believe newer ones have fixed this by making the set button accessible without opening the cover.

    Other thoughts:
    - I am using this with the 6v power supply so that I can query the temperature remotely. The device seemed to intermittently respond. However, Insteon sent me an newly designed power supply (without my asking) and the device works more reliably now.

    Posted on 2/25/2015

    Works perfect Review by GeorgeG
    Works perfect

    I use this as a wireless controller for 2 space heaters which are plugged into 2 Insteon outlet modules. Works perfect and is like having central heat with very precise control. If you want this to control your central HVAC system you need to start with the wired controller and use this as a remote sensor/controller.

    Posted on 1/20/2015

    Not Good for Standalone Use Review by Heavy Insteon User
    Not Good for Standalone Use

    This thermostat does not work as described as a stand-alone thermostat/temp sensor device controller. I purchased 3 with very high hopes -- none worked and with many tests were conducted. I've got a couple hundred Insteon devices in normal scenes and/or controlled by ISY so I'm not a novice.

    It may work fantastic when linked to the wired version but is worthless stand-alone.

    Posted on 1/16/2015

    Review of 2441zth Review by MIKE
    Review of 2441zth

    I'm a software engineer and and have been a gadget builder for close to 40 years now, the manual on this things is just about worthless.

    Posted on 7/2/2014

    Review of 2441zth Review by NATHAN
    Review of 2441zth

    Received mine this week. I want it to communicate with home control software so I need to go the external power route as on batteries it goes to sleep and won't take external commands.

    Similar to what Smarthome sells, I tried a 6VDC/800mA but the humidity was jumping all over the place. This has been documented in other online forums. I tried several more adapters rated as 5V. If they produce less than 5.09V then the external sensor doesn't appear to work correctly.

    The solution that finally worked for me was the genuine Apple iphone square wall plug rated 5VDC/1A and a usb cable stripped at one end for +/- power. That produced 5.19V and now the humidity is stable and the external sensor is also stable. Hopefully this can help others facing this same problem.

    Posted on 3/13/2014

    Review of 2441zth Review by CRAIG
    Review of 2441zth

    Very nice unit. I'm using it as a remote sensor for the 2441TH unit. Not only does it function as a remote sensor - but the unit is totally in synch with the main unit. I can program from either one and the other one gets the update immediately! Nice!!!

    Posted on 12/29/2013

    Review of 2441zth Review by JASON
    Review of 2441zth

    Fantastic product. I have it controlling heat and humidity to our nursery room with the use of plug in on/off modules connected to independent devices.

    Posted on 12/14/2013

    Review of 2441zth Review by Abdullah
    Review of 2441zth

    This is an update to my previous review.

    Tried to have my thermostats, wireless and wired to the factory reset state, then connected them to each other.

    Since the wired thermostat has default pre-programmed modes for wake, leave, return and sleep, which cannot be disabled, I used to set the wireless thermostat as MASTER and confirmed that HOLD was set ON.

    Since then, both wired and wireless thermostat are stable, and do not change their current mode as they used to do.

    I believe preprogramming should have an ON/OFF toggle for people who do not run on a schedule, and the default must be OFF. In addition, once a wireless thermostat is connected and set as MASTER it should have the ability to access programming button.

    Posted on 7/5/2013

    Review of 2441zth Review by KEVIN
    Review of 2441zth

    Wonderful!!! Linked perfectly with the master, and now our bedroom can be controlled perfectly! Best idea anyone's ever thought up!

    Posted on 6/14/2013

    Review of 2441zth Review by NEIL
    Review of 2441zth

    Once you get it calibrated, it's worked great for me

    Posted on 5/22/2013

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    • Insteon Wireless Thermostat
    • Tabletop stand
    • Two (2) AA batteries
    • Quick Start Guide
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