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Control Your Thermostat From Any INSTEON-Compatible Controller
INSTEON Thermostat Adapter - Totaline / Venstar Compatible
INSTEON Thermostat Adapter - Totaline / Venstar Compatible
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Thermostat Adapter Side View Connection to Venstar Thermostat
Thermostat Adapter - INSTEON and Totaline / Venstar Compatible
Item# 2441V
Price: $99.99
Free shipping on orders over $50 - See Details


  • Save energy and money on bills by remotely controlling your thermostat
  • Compatible with Totaline/Venstar T1700, T1800, and T1900 thermostats
  • No batteries! INSTEON Adapter is powered by thermostat
  • Now available as an all-in-one solution: INSTEON Thermostat

Essential Info

Control the temperature from anywhere in the house! INSTEON Thermostat Adapter allows you to recall stored set point/mode settings from any INSTEON-compatible controller. Faster than grabbing a blanket, you can use your coffee table RemoteLinc to recall "comfort mode," bringing the room that perfect temperature. When turning off your lights for the night from your bedside KeypadLinc you can also save some energy and money by recalling "energy-savings mode" which minimizes the activity of your HVAC system while you're sleeping. Because you can program any button on an INSTEON controller to any temperature and mode on the thermostat, the possibilities are endless.

Compatible Thermostat Required:
INSTEON Thermostat Adapter is compatible with the following Totaline / Venstar thermostats:
  • T1700 (1-Day Programmable Thermostat) Thermostat.
  • T1800 (7-Day Programmable Thermostat) Thermostat.
  • T1900 (7-Day Programmable Thermostat, Dual Fuel).
    These thermostats require power to function. If you do not have a "common" wire running to your thermostat from your heating/cooling equipment, you may need either to run a new wire or to install a thermostat power supply module.

    Rev. 2 New Features (as of 11/20/09)
  • Reports changes in temp, temp setpoints, mode, and fan mode
  • Controller functionality on heat call, cool call, and fan call (auto & manual ON)
  • Supports +1, -1 degree on incremental bright/dim commands
  • Off Button functionality - If you want a link to respond to an Off command instead of an On command, send an Off command from the INSTEON controller within 30 seconds of linking and before any other INSTEON commands are sent.

    Note: INSTEON Thermostat Adapter is an RF-only INSTEON product, which is not X10 compatible. At least one Access Point is required to communicate with your plug-in or wire-in INSTEON-compatible devices.

  • Manuals/Software

    What's Included

  • INSTEON Thermostat Adapter
  • Quick-Start Guide
  • More Info

    Easy To Install
    Once you've installed your thermostat, INSTEON Thermostat Adapter snaps right into the jack on the bottom of your thermostat. Now all you need to do is set the thermostat to the mode/temperature you want and link it to the INSTEON controller of your choice, using INSTEON's simple Plug-n-Tap setup. Every time you activate that scene on the controller, your thermostat will return to the corresponding temperature. From plugging in your INSTEON Thermostat Adapter to changing the temperature from an INSTEON controller, setup takes as little as a couple of minutes.

    INSTEON Thermostat Adapter - Totaline / Venstar Compatible is compatible with HCA Standard and HCA Plus, home automation software allowing this adapter to be integrated into your home automation control system.

    Non-Volatile Memory
    All Thermostast Adapter settings are stored in non-volatile memory and are not lost during power failures.

    Certifications and Warranty
    All INSTEON products are safety approved. The factory for SmartLabs Design Products is ISO9001 certified. Because of this passion for quality, Smarthome stands behind the entire line of Smarthome-Brand INSTEON products with a full 2-year warranty.



    Manufacturer Product No.:2441V INSTEON Thermostat Adapter for Venstar/ Totaline
    Patent No.:U.S. Patent No. 7,345,998, International patents pending
    Range:150' (line of sight)
    Frequency:915 MHz
    Warranty:2 years, limited
    Compatible Thermostats
    Carrier/Totaline Residential:P374-1700, P374-1800, P374-1900
    Venstar Residential:T1700, T1800, T1900
    Carrier/Totaline Commercial:P374-2700, P374-2800, P374-2900
    Venstar Commercial:T2700, T2800, T2900
    Status LED:1 Green LED (normally on)
    Setup Memory:Non-volatile EEPROM
    Software Supported features (as avail via software such as HouseLinc)
    Heat set point:Supports all set points of Thermostat
    Cool set point:Supports all set points of Thermostat
    Temperature Status Request:Supported
    Humidity Status Request:Supported
    Mode Status Request:Supported
    Fan Status Request:Supported when in “Auto” mode
    Mode Control: Heat, Cool, Auto, OFF
    Fan Control:On, Auto
    Degree Format (F/C):As Supported by Thermostat
    INSTEON Features
    INSTEON Addresses:1 hard-coded out of 16,777,216 possible
    INSTEON Links:417
    INSTEON Messages Repeated:Yes
    Operating Temperature Range:Indoors, 32 to 104°F
    Operating Humidity Range:0% - 85% relative humidity
    Dimensions:1.75" H x 2.89" W x .58" D
    Weight:.80 oz
    Connector:RJ11 4 wire (top of unit)
    Input Power:5VDC 30mA Standby (Powered from Thermostat)
    FCC Certification:ID SBP2441
    Industry Canada Certification:IC :5202A-2441V
    X10 Features
    X10 Support:N/A


    Thermostat Adapter  Side View  Connection to Venstar Thermostat   
    Thermostat Adapter  Side View  Connection to Venstar Thermostat   


    73 Ratings
    5 star: 41%  (30)
    4 star: 21%  (15)
    3 star: 11%  (8)
    2 star: 15%  (11)
    1 star: 12%  (9)
    Average Customer Rating
    (73 customer ratings)
    Share your thoughts with other customers
    ERIC -- seabrook, NH   12/12/2013
    This unit was a replacement for a venstar with built in insteon card that occasionally stopped communicating. One month no issues.
    Paul Warnk -- phoenix, MD   11/27/2013
    This one is a fail, have bought 2 in four years, both of them stopped working correctly within a year
    D. DALE -- lafayette, LA   8/26/2013
    The Adapter works fine, but the setup was not easy. Called several times for tech support and each time took over 20 minutes to connect to a tech. Once connected to a tech the support was great.
    DWIGHT -- gulfport, MS   12/2/2012
    I have had very poor service out of this product. Not reliable.
    VICTOR -- rye brook, NY   9/27/2012
    I love most of my Insteon products, but not this one. I am on my 4th thermostat adapter. 2 before the recall and 2 after and I almost just had a tech sending out my 5th but fortunately our call was disconnected and when I called back in I received a much more thorough tech who did research and found that the Insteon IPhone app is broken for everyone until ios6 came out (which incidentally didn't fix it either, but I'm able to use the web interface after a full reset of the adapter) I am convinced this adapter has been an an ill-conceived nightmare for Insteon since they've now come out with their own thermostat and wireless add-on sensor. But for customers like me who have already invested $350-$400 for the Venstar T1900, the Insteon adapter, the wiress temperature sensor, and the wireless receiver for the thermostat -we simply can't afford to buy these new pieces and scrap our investment. I really feel Insteon should offer the new items to people who have had as much trouble as I've had and been patient through 2 years of trials and tribulations.
    KEVIN C -- rockland, MA   7/8/2012
    This was a replacement of one that stopped working from time to time. The problem appears to be resolved.
    ROSS -- phoenix, AZ   7/4/2012
    I've had two of these adaptrers for two years now and they have worked flawlessly until about a month ago. First one died. The the replacment I received from Smarthome started setting my thermostat to 78 degrees every night at 7:45 even though it was not in program mode. I was able to fix this adapter by follwing the instructions to reset it but still it was a pain to disgnose and then fix. I understand you can now buy the Venstar thermostats with integrated adapters. Maybe this is the way to go. These thermostats are great BTW.
    JORGE -- patterson, NY   4/14/2012
    Great customer support after purchase. These units had old software and they replaced them with new ones almost a year after purchase.
    CHAD -- van wert, OH   3/18/2012
    Had the previous version that caused malfunction issues. The new version, which was replaced under warranty, works great. I would recommend the integrated venstar/insteon tstat to the seperate units.
    jxs -- New York   1/22/2012
    I have this modules on 2 thermostats in my house and I continue to have communication problems even after installing the Lamplinc control module on a diferent room and the relay modules. Smarthome has not been able to help me other than asking me to purchase more equipment from them. The concept is great as long as it would work....
    Greg -- denver, CO   1/20/2012
    These things cause communication issues do not buy.
    JAMES -- hilton head, SC   12/24/2011
    There are many different versions/releases of this product. I was disappointed that the one I received was not the most recent release. Smarthome should make clear which version they will deliver because it makes a difference!
    JAMES -- cortland, NY   12/2/2011
    This was an RMA, a replacement for a replacment 2441V v2.2R that was a replacement for an earlier version that wasn't at all reliable. I have two, and thhis replacement for the replacement failed as well. It took about four weeks to get this one. It's working right now as is another one in my home. I am very happy with Insteon overall, but the jury is still out on this unit.
    Rob -- Michigan   12/1/2011
    Very UN-reliable. When it works it's great, but just drops off for no reason. Out of town and trying to check on system with no response.
    Jim -- Central NY   11/10/2011
    Finally, SmarhHme has a newer v2.2 that fixes all of the problems. eBay buyers beware: make sure you don't buy a 2441 unless it is v2.2 or later. Older ones don't work! Back to SmartHome, thanks for fixing the problem and thanks for the free upgrade. Standing behind your products is always a good idea.
    RAndrews1 -- miami, Florida   10/12/2011
    In February, 2011 I wrote a review that dealt with these units repeatedly losing communications, and expressed my hope that Smarthome would fix this problem. Well, it took some time, but last month I received two new replacements, no charge and since installing them I have had no failures of any kind. I'm delighted, both with the quality of the fix and with the no charge replacement policy. Gotta give Smarthome 5 stars for this one.
    KIRBY -- austin, TX   8/30/2011
    I'm not sure what the deal is but these devices are notoriously unreliable. For some unknown reason they just stop responding. Usually you can get them working again by resetting the adapter an/or the controller. I really hope Smarthome gets the bugs worked out. I've had the same issues at two homes.
    Heyandy -- macedonia, OH   7/16/2011
    Wish I had read the reviews BEFORE buying... I have the 2441V in a 1-day programmable Venstar thermostat.. I use Indigo current on the beta of 5, but same happened on the latest versions of 4... When it works, everything works well, but it seems about every few days, the unit locks up. Nothing will control the unit until it is unplugged and plugged back in, then all works fine... Smarthome, any updates on this problem as it seems many have experienced it?
    Chris H -- chicago, IL   7/5/2011
    When it works - it is fine. But like others on here, the units often lock up, and disrupt the entire Insteon system. Since there is no easy way to get to it, you have to recycle the power from the breaker panel. Mildly annoying, unless it locks up when you are work or on vacation, in which case you are hosed. SmartHome keeps talking about a fix, but we're all STILL waiting.
    PAUL -- philadelphia, PA   4/29/2011
    Working fine for the present. Allows me to monitor and control greenhouse. This is my 5th adapter in 4 years. 3 are functioning.


    Mini Remote - INSTEON Wireless Keypad, 4 Scene       
    Mini Remote - INSTEON Wireless Keypad, 4 Scene       

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