Insteon Wireless Thermostat
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INSTEON 2441ZTH Wireless 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.
  • Insteon Hub Pro enables this device to work with HomeKit technology - visit the Insteon Hub Pro product page for additional details

Item #: 2441ZTH

In stock - Ships Today

Frequently Bought Together:

Price For Both: $229.98

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

  • Expandable

    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.

    Wired Thermostat

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

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

    Wireless Thermostat

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

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

    Venstar Thermostat Adapter3

    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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