Skip to main contentAccessibility help
Accessibility feedback
Press / to jump to the search box
Choose what you’re giving feedback on
  • Delete

  • See more
  • Delete

  • See more
  • Report inappropriate predictions
    Quick Settings
    Sign in
    AI Mode
    All
    Shopping
    Images
    Videos
    Short videos
    Forums
    More
    Tools

    Search Results

    Any time
    Any time
    Past hour
    Past 24 hours
    Past week
    Past month
    Past year
    Custom range...
    Custom date range
    Go
    All results
    All results
    Verbatim
    Advanced Search
    About 225 results (0.24s) 
    Ctrl+Shift+X to select

    Refine results

    • Features
      • Programmable
      • Digital
      • Remote Programming
      • Touchscreen
      See more
    • Brand
      • Honeywell
      • Trane
      • White-Rodgers
      • Siemens
      See more
    • Compatibility
      • Low Voltage
      • Line Voltage
      • Millivolt
    • Color
      • Black
      • Gray
      • Teal
      • Blue
      See more
    • Stores
      • Home Depot
      • Grainger Industrial Supply
      • RSP Supply
      • WebstaurantStore.com
      See more
    • Assistant Support
      • Amazon Alexa
      • Google Assistant
      • Siri
    • Shape
      • Rectangular
      • Square
      • Round
    • Price
      • Under $200
      • Over $200
      • $
        Please provide a valid price.
        $
        Please provide a valid price.
    • Sort by
      • Price: low to high
      • Price: high to low
    • Free shipping
      • Free shipping
    Failed to load more results. Please try again later.
    Programmable
    Digital
    On sale
    Get it fast
    Honeywell
    Low Voltage
    Remote Programming
    Line Voltage
    Price
    Touchscreen
    Replacement
    Plumbing Valves
    Smart Thermostats
    For Single-stage Heating & ...
    Black
    For Sale
    Location
    Gray
    Teal
    Blue
    Yellow
    With Mounting Hardware
    Amazon Alexa
    Rectangular
    Google Assistant
    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    Modbus heat pump thermostats (typically using RS485 RTU) provide direct, granular control over HVAC systems, allowing for real-time monitoring and setting adjustments, often featuring WiFi for app connectivity. Key brands include E-top, Meitav-Tec, and Saswell, which offer programmable, multi-stage, or 2/4-pipe systems, ideal for integrating air-to-water heat pumps and fan coils into Building Management Systems (BMS). 
    Key Features and Capabilities 
    • Protocol: RS485 Modbus RTU interface for reliable, wired communication.
    • Heat Pump Control: Suitable for air-to-water units, supporting heating, cooling, and sometimes sanitary hot water modes.
    • Compatibility: Some models, like Saswell T29MTW, support 2-pipe/4-pipe fan coils and 2-stage heating/cooling.
    • Functionality: Precise temperature control (
      ±0.1∘
      𝐶
      ), programmable schedules, and frost protection.
    • Integration: Can be used with automation systems like Loxone via Modbus Air. 
    Installation and Setup Tips 
    • Wiring: Usually a 2-wire twisted pair connection for Modbus data, plus power (24VAC or 230VAC).
    • Addressing: Modbus devices must have unique addresses set, often via the thermostat menu.
    • Parameters: Baud rate, parity, and stop bits must match the heat pump controller.
    • Termination: A
      120
      Ω
      resistor may be required on the Modbus line for stable communication.
       
    Common Models 
    • E-top Controls: Specializes in Modbus/Lora thermostats for heat pump master controllers.
    • Meitav-Tec: Offers ETNC-24-SUPER-MDB-01 and other BMS-compatible units.
    • Saswell: SAS908MTW for commercial DX units.
    • Pierre: Integration solutions for smart home control. 
    This video demonstrates how to connect a Modbus thermostat to a controller:
    Related video thumbnail
    1m
    i3 Engineering
    YouTube• Jun 30, 2025
    These thermostats allow for advanced automation, such as switching to cold mode based on summer settings or setting custom temperature, fan speed, and mode parameters directly from a central interface. 
    • RS485 Modbus Smart Thermostat for fan coil, valve, heat pump or ...
      RS485 Modbus Smart Thermostat for fan coil, valve, heat pump or gas boiler control * Attractive and Big LCD Display. * Multiple mo...
      E-TOP Controls
    • Air to Water Heat Pump RS485 Modbus Underfloor and Fan Coil ...
      Equipped with WiFi connectivity, this intelligent touch modbus thermostat enables users to remotely manage and control their under...
      E-TOP Controls
    • OEM/ODM Air to Water Heat Pump Lora Modbus Thermostat for ...
      With lora or modbus interface, this home automation thermostat can combine to talk with heat pump master controller with modbus pr...
      ETOP Controls
    Show all
    • RS485 Modbus Smart Thermostat for fan coil, valve, heat pump or ...
      RS485 Modbus Smart Thermostat for fan coil, valve, heat pump or gas boiler control * Attractive and Big LCD Display. * Multiple mo...
      E-TOP Controls
    • Air to Water Heat Pump RS485 Modbus Underfloor and Fan Coil ...
      Equipped with WiFi connectivity, this intelligent touch modbus thermostat enables users to remotely manage and control their under...
      E-TOP Controls
    • OEM/ODM Air to Water Heat Pump Lora Modbus Thermostat for ...
      With lora or modbus interface, this home automation thermostat can combine to talk with heat pump master controller with modbus pr...
      ETOP Controls
    • DX Thermostat with Modbus RTU for BMS Control - SASWELL
      Product Description. The SAS908MTW DX Unit Thermostat is an advanced, energy-efficient controller designed for high-resolution tem...
      SASWELL
    • MODBUS thermostats / controllers Archives - Meitav-Tec
      Modbus is a protocol interface for control solutions for HVAC systems. Some modbus thermostats include: * **ETNC-24-SUPER-MDB-01**
      meitavtecamerica.com
    • Modbus Thermostat for Commercial FCU & DX Unit Control
      Product Description. The Saswell T29MTW Modbus thermostat is a versatile commercial controller engineered for superior comfort and...
      SASWELL
    • MODBUS thermostats / controllers - Meitav-Tec
      Meitavtec offers many control solutions with modbus protocol interface for various hvac alternatives, by thermostats as well as dd...
      Meitav-tec
    • PIERRE Academy - Modbus Thermostat Integration
      Feb 14, 2025 — welcome to this Pierre Academy tutorial today we will integrate a Modbus thermostat into our smart system allowing precise tempera...
      YouTube·PIERRE Smart Home Solution
      3m
    • 2 - Worcester Bosch Modbus Connection
      Jun 26, 2024 — foreign the homely Hub controls the heat pump over a two-wire modbus connection single twisted pair must be used a small screwdriv...
      YouTube·Homely Energy
      1:42
    • NEW: Wirelessly integrate Modbus RTU I 2023 I 4K
      Jul 25, 2023 — most of you will know from your experience on a construction site that it is not always possible to lay a cable in a building or t...
      YouTube·LOXONE – International
      2m
    • Mitsubishi Electric Ecodan Air-to-Water heat pumps to Modbus ...
      Aug 22, 2025 — the new plug-and-play gateway for Mitsubishi. Ecodan systems delivers integration into Moddis RTU or Backnet MSTP protocols to fac...
      YouTube·Intesis by HMS Networks
      0:22
    Dive deeper in AI Mode
    AI can make mistakes, so double-check responses
    Share
    Facebook
    WhatsApp
    X
    Email
    Click to copy link
    Share link
    Link copied
    Thank you
    Your feedback helps Google improve. See our Privacy Policy.
    Share more feedback
    Report a problem
    Close
    Thank you
    Your feedback helps Google improve. See our Privacy Policy.
    Share more feedback
    Report a problem
    Close
    Thank you
    Your feedback helps Google improve. See our Privacy Policy.
    Share more feedback
    Report a problem
    Close
    Show more
    My Ad Center
    Popular products
    • Modbus Temperature Controller..
      Modbus Temperature Controller.
      $207.00
      Pixsys USA
      Modbus Temperature Controller.
      $207.00
      Pixsys USA
    • Modbus& RS485 RTU communication2Pipe smart heat cool temp thermostat 95-240VAC,24VAC.
      Modbus& RS485 RTU communication2Pipe smart heat cool temp thermostat 95-240VAC,24VAC
      $28.78$36
      AliExpress
      Free delivery
      Modbus& RS485 RTU communication2Pipe smart heat cool temp thermostat 95-240VAC,24VAC
      $28.78$36
      AliExpress
      Free delivery
      Low Voltage
    • Watts Room Thermostat / Modbus Sensor Digital Display Wfht-lcd.
      Watts Room Thermostat / Modbus Sensor Digital Display Wfht-lcd
      $90.00
      eBay
      Free delivery
      Watts Room Thermostat / Modbus Sensor Digital Display Wfht-lcd
      $90.00
      eBay
      Free delivery
      Digital
    • iO HVAC Controls WEB-T32P Web Comfort Thermostat.
      iO HVAC Controls WEB-T32P Web Comfort Thermostat
      $375.42
      SupplyHouse.com
       & more
      Free delivery
      iO HVAC Controls WEB-T32P Web Comfort Thermostat
      $375.42
      SupplyHouse.com
       & more
      Free delivery
    • 485 Air Conditioner Thermostat Modbus Protocol Learning Infrared Air Conditioner Controller.
      485 Air Conditioner Thermostat Modbus Protocol Learning Infrared Air Conditioner Controller
      $37.26
      AliExpress
      485 Air Conditioner Thermostat Modbus Protocol Learning Infrared Air Conditioner Controller
      $37.26
      AliExpress
    • 24VAC Modbus & RS485 thermostat 0-10V Fan output 2P-4P fan coil thermostat for cooling heating |.
      24VAC Modbus & RS485 thermostat 0-10V Fan output 2P-4P fan coil thermostat for cooling heating |
      $43.30$56
      AliExpress
      Free delivery
      24VAC Modbus & RS485 thermostat 0-10V Fan output 2P-4P fan coil thermostat for cooling heating |
      $43.30$56
      AliExpress
      Free delivery
      Line Voltage, Low Voltage
    • RS485 Modbus heat regulator warm floor 16A Electric Heating thermostat.
      RS485 Modbus heat regulator warm floor 16A Electric Heating thermostat
      $30.60$43
      AliExpress
      Free delivery
      RS485 Modbus heat regulator warm floor 16A Electric Heating thermostat
      $30.60$43
      AliExpress
      Free delivery
      Line Voltage, Low Voltage
    • 5% OFF
      BHT-6001 LED Modbus Room Boiler Modbus Touch Screen Thermostat WiFi Smart Room | Wi-Fi | 2 Years. 5% OFF.
      BHT-6001 LED Modbus Room Boiler Modbus Touch Screen Thermostat WiFi Smart Room | Wi-Fi | 2 Years
      $66.49$70
      eBay - dyjt003
      5% OFF
      BHT-6001 LED Modbus Room Boiler Modbus Touch Screen Thermostat WiFi Smart Room | Wi-Fi | 2 Years
      $66.49$70
      eBay - dyjt003
      Remote Programming · Digital · Touchscreen
    • TUYA WIFI ZigBee MODBUS Smart Thermostat, Controller for Water/Electric Floor Heating,& Gas Boiler.
      TUYA WIFI ZigBee MODBUS Smart Thermostat, Controller for Water/Electric Floor Heating,& Gas Boiler
      $55.56$103
      AliExpress
      TUYA WIFI ZigBee MODBUS Smart Thermostat, Controller for Water/Electric Floor Heating,& Gas Boiler
      $55.56$103
      AliExpress
      Low Voltage · Google Assistant, Amazon Alexa · Remote Programming
    • Zigbee & Wi-Fi & MODBUS TUYA Thermostat for Fan Coil Unit, 2P/4P, Cooling/Heating Function,RS485.
      Zigbee & Wi-Fi & MODBUS TUYA Thermostat for Fan Coil Unit, 2P/4P, Cooling/Heating Function,RS485
      $28.24$59
      AliExpress
      Free delivery
      Zigbee & Wi-Fi & MODBUS TUYA Thermostat for Fan Coil Unit, 2P/4P, Cooling/Heating Function,RS485
      $28.24$59
      AliExpress
      Free delivery
      Line Voltage · Amazon Alexa · Remote Programming
    Discussions and forums
    Automation for sending temperature value to heat pump via Modbus TCP
    Reddit · 
    r/homeassistant
     · 6 months ago
    Automation for sending temperature value to heat pump via Modbus TCP
    Reddit · 
    r/homeassistant
     · 6 months ago
    Automation for sending temperature value to heat pump via Modbus TCP ... r/homeassistant - Looking for a smart thermostat compatible with ...  More
    Modbus heatpump issue configuration Esphome
    Home Assistant Community · 
    2 years ago
    Modbus heatpump issue configuration Esphome
    Home Assistant Community · 
    2 years ago
    I have a heat pump boiler with modbus protocol but I can ... thermostat. - name: "Cooling Setpoint" slave: 1 address: 7203 ...  More
    Samsung Heatpump via MODBUS/RS485 - Hardware
    Home Assistant Community · 
    2 years ago
    Samsung Heatpump via MODBUS/RS485 - Hardware
    Home Assistant Community · 
    2 years ago
    ... -E03CN indoor unit. Whilst I'm currently “controlling” the heatpump via the room thermostat (using a Shelly), this only gives me on/o…  More

    See more
    People also ask
    Do I need a special thermostat if I have a heat pump?
    An error has occurred. Please try again later.
    What is an RTU thermostat?
    RTU/Heat Pump Communicating Thermostat - LonMark
    The RTU/Heat Pump Communicating Thermostat is specifically designed for single stage and multi-stage control of heating/cooling equipment such as rooftop and self contained units.

    RTU/Heat Pump Communicating Thermostat - LonMark


    LonMark
    https://www.lonmark.org › products › rtuheat-pump-com...
    LonMark
    https://www.lonmark.org › products › rtuheat-pump-com...
    Explore More
    Do you need a special thermostat for a modulating furnace?
    Does a Modulating Furnace Require a Special Thermostat? Yes, most modulating furnaces require a compatible smart thermostat or a communicating thermostat. These thermostats allow the system to adjust output in tiny increments rather than fixed stages.Sep 26, 2025

    What Is a Modulating Furnace? A Complete Guide


    Nespolo Mechanical
    https://nespolohvac.com › what-is-a-modulating-furnace
    Nespolo Mechanical
    https://nespolohvac.com › what-is-a-modulating-furnace
    Explore More
    What type of thermostat do I need for a heat pump?
    An error has occurred. Please try again later.

    Ask anything in AI Mode

    List key features to look for
    Compare Nest to Ecobee thermostat
    Tell me about the Honeywell T4 Pro
    Skip digging, start guided research

    Web results

    Modbus RS485 Heat Pump Thermostat WIFI Smart Home


    E-TOP Controls
    https://www.etopcontrols.com › Others
    E-TOP Controls
    https://www.etopcontrols.com › Others
    Explore More
    The Smart Underfloor Heating Thermostat is a versatile and user-friendly device designed to control both water-based and electric underfloor heating systems ...Read more
    Modbus heat pump Thermostat from www.etopcontrols.com

    Modbus Thermostat - WiFi - OEM


    Alledio
    https://www.alledio.com › alledio-oem-thermostat-modb...
    Alledio
    https://www.alledio.com › alledio-oem-thermostat-modb...
    Explore More
    Easily adjust the temperature to local opening hours, daily routines, and expected occupancy - reducing energy usage when heating or cooling is not needed.Read more
    Modbus heat pump Thermostat from www.alledio.com
    More products
    • iStat6 Modbus programmable thermostat.
      iStat6 Modbus programmable thermostat
      $129.00
      isquared.ca
      iStat6 Modbus programmable thermostat
      $129.00
      isquared.ca
      Programmable · Remote Programming · Digital
    • Modbus Touchscreen Thermostat.
      Modbus Touchscreen Thermostat
      $200.00
      eBay
      Free delivery
      Modbus Touchscreen Thermostat
      $200.00
      eBay
      Free delivery
      Low Voltage · Digital · Touchscreen
    • RS485 & Modbus floor heating thermostat,for control NO/NC,24VAC 95-240VAC optional.
      RS485 & Modbus floor heating thermostat,for control NO/NC,24VAC 95-240VAC optional
      $39.99$56
      AliExpress
      Free delivery
      RS485 & Modbus floor heating thermostat,for control NO/NC,24VAC 95-240VAC optional
      $39.99$56
      AliExpress
      Free delivery
      Line Voltage, Low Voltage
    • Modbus BAPI-Stat 4MB Temperature and Humidity Sensor.
      Modbus BAPI-Stat 4MB Temperature and Humidity Sensor
      $280.00
      BAPI
      Modbus BAPI-Stat 4MB Temperature and Humidity Sensor
      $280.00
      BAPI
      With Humidity Sensor
    • Floor Programmable Heating Modbus Room Thermostat 24VAC | Modbus Version GC Wiring | 2 Years.
      Floor Programmable Heating Modbus Room Thermostat 24VAC | Modbus Version GC Wiring | 2 Years
      $75.00
      eBay - dyjt003
      Floor Programmable Heating Modbus Room Thermostat 24VAC | Modbus Version GC Wiring | 2 Years
      $75.00
      eBay - dyjt003
      Low Voltage · Programmable · Digital
    • WIFI MODBUS Control Cooling Heating Thermostat for 24V 220V Fan 4P Valve EC 0-10V/AC Regulation Home.
      WIFI MODBUS Control Cooling Heating Thermostat for 24V 220V Fan 4P Valve EC 0-10V/AC Regulation Home
      $37.94$60
      AliExpress
      WIFI MODBUS Control Cooling Heating Thermostat for 24V 220V Fan 4P Valve EC 0-10V/AC Regulation Home
      $37.94$60
      AliExpress
      Remote Programming
    • 5% OFF
      BAC-7000 Programmable Modbus Room Touch Screen Thermostat | WiFi | Digital | Wi-Fi. 5% OFF.
      BAC-7000 Programmable Modbus Room Touch Screen Thermostat | WiFi | Digital | Wi-Fi
      $94.99$100
      eBay - dyjt003
      5% OFF
      BAC-7000 Programmable Modbus Room Touch Screen Thermostat | WiFi | Digital | Wi-Fi
      $94.99$100
      eBay - dyjt003
      Line Voltage, Low Voltage · Programmable · Remote Programming
    • TUYA WIFI/RS485 Modbus RTU Programmable Thermostat for Control 2/4-Way Valve Heat/Cool HAVC Air.
      TUYA WIFI/RS485 Modbus RTU Programmable Thermostat for Control 2/4-Way Valve Heat/Cool HAVC Air
      $56.77$98
      AliExpress
      Free delivery
      4.5(111)
      TUYA WIFI/RS485 Modbus RTU Programmable Thermostat for Control 2/4-Way Valve Heat/Cool HAVC Air
      $56.77$98
      AliExpress
      Free delivery
      4.5(111)
    • 5% OFF
      BAC-7000 Smart WiFi Modbus Room HVAC System Programmable Modbus Room Thermostat. 5% OFF.
      BAC-7000 Smart WiFi Modbus Room HVAC System Programmable Modbus Room Thermostat
      $94.99$100
      eBay - dyjt003
      5% OFF
      BAC-7000 Smart WiFi Modbus Room HVAC System Programmable Modbus Room Thermostat
      $94.99$100
      eBay - dyjt003
      Line Voltage, Low Voltage · Programmable · Remote Programming
    • Modbus& RS485 RTU communication 2Pipe thermostat,heat or cool 95-240VAC,Optional 24VAC.
      Modbus& RS485 RTU communication 2Pipe thermostat,heat or cool 95-240VAC,Optional 24VAC
      $30.88$39
      AliExpress
      Free delivery
      Modbus& RS485 RTU communication 2Pipe thermostat,heat or cool 95-240VAC,Optional 24VAC
      $30.88$39
      AliExpress
      Free delivery
      Line Voltage, Low Voltage

    Web results

    MODBUS Thermostat


    Smart PIERRE
    https://wiki.smartpierre.com › solutions › heating-cooling
    Smart PIERRE
    https://wiki.smartpierre.com › solutions › heating-cooling
    Explore More
    Temperature Control: The Modbus thermostat sends real-time temperature data to the Pierre controller, which adjusts heating and cooling accordingly. This allows ...Read more
    Modbus heat pump Thermostat from wiki.smartpierre.com

    Modbus Heating Thermostat - Edge Series


    Heatmiser
    https://www.heatmiser.com › modbus-thermostat-series
    Heatmiser
    https://www.heatmiser.com › modbus-thermostat-series
    Explore More
    The Heatmiser Edge is our 230v powered Modbus Room Thermostat that is compatible with the wireless air sensor and wireless door/window switch.Read more
    Modbus heat pump Thermostat from www.heatmiser.com

    Modbus Lora Voltage-free Smart Thermostat for Heat ...


    Xiamen E-Top Controls Technology Co., Ltd.
    https://www.etopthermostat.com › modbus-lora-voltage-...
    Xiamen E-Top Controls Technology Co., Ltd.
    https://www.etopthermostat.com › modbus-lora-voltage-...
    Explore More
    This modbus or lora heat pump thermostat offers a range of features to ensure optimal comfort, energy efficiency, and convenient control. Heating and Cooling ...Read more
    Modbus heat pump Thermostat from www.etopthermostat.com

    Hotowell Digital Programmable Modbus Thermostat


    Hotowell
    https://www.hotowell.com › product › digital-modbus-the...
    Hotowell
    https://www.hotowell.com › product › digital-modbus-the...
    Explore More
    In addition to basic temperature control, programmable thermostats can also be used to manage the house room environment at different times of the day and week.Read more
    Modbus heat pump Thermostat from www.hotowell.com

    Temperature control with Modbus thermostats in the cold ...


    andivi.com
    https://www.andivi.com › temperature-control-with-mod...
    andivi.com
    https://www.andivi.com › temperature-control-with-mod...
    Explore More
    The TRB and TRC Modbus thermostats allow, depending on the model, the control of a two-pipe or four-pipe system. This means that it can be used to operate all ...Read more
    Modbus heat pump Thermostat from www.andivi.com

    [Help request] Using Modbus to control heatpump ...


    Home Assistant Community
    https://community.home-assistant.io › help-request-using...
    Home Assistant Community
    https://community.home-assistant.io › help-request-using...
    Explore More
    Jun 9, 2022 — Our heatpump communicates using Modbus with the thermostats, 1 per floor, 3 in total (Slaves 11, 12 and 13). Modbus RTU uses a master-slave ...Read more
    RV/Trailer/Modbus Thermostat with multiple heat sources
    Dec 12, 2024
    Samsung Heatpump via MODBUS/RS485 - Hardware
    Jan 3, 2024
    More results from community.home-assistant.io

    MODBUS thermostats / controllers Archives - Meitav-Tec


    meitavtecamerica.com
    https://meitavtecamerica.com › Hvac controls
    meitavtecamerica.com
    https://meitavtecamerica.com › Hvac controls
    Explore More
    Meitavtec offers many control solutions with modbus protocol interface for various hvac alternatives, by thermostats as well as ddc controllers.Read more
    Modbus heat pump Thermostat from meitavtecamerica.com
    People also search for
    Modbus heat pump thermostat manual
    Modbus heat pump thermostat wiring
    Modbus thermostat
    Heatmiser edge modbus
    Heatmiser edge thermostat manual
    Heatmiser heat pump
    Heatmiser 12v thermostat manual
    Heatmiser wireless thermostat manual

    Page Navigation

    12345678910Next

    Footer Links

    98052, Washington
     - From your IP address
     - 
    Update location
    Can't update your location
    Learn more
    Updating location...
    HelpSend feedbackPrivacyTerms
    Google apps