LinkedGo ST802-B - Smart HVAC Thermostat
LinkedGo ST802-B - Smart HVAC Thermostat - Image 2
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LinkedGo ST802-B – Smart HVAC Thermostat

£119.99

2 in stock

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Overview

LinkedGo ST802-B is a Wi-Fi smart HVAC thermostat powered by Shelly, designed for advanced control of underfloor heating, fan coils, ventilation systems, and cooling applications. It is suitable for both single-room installations and integration into larger HVAC networks, providing flexible automation and precise climate management.

Built on the ShellyX chip, the ST802-B supports Wi-Fi and Bluetooth connectivity with no hub required, and can act as a Wi-Fi range extender and BLE gateway. It directly controls heating valves and fan coil units, supports 10 V DC analogue output for ventilation fans, and integrates with Shelly relays for electric underfloor heating. RS485/MODBUS support enables professional HVAC system integration.

Key features

  • Wi-Fi operated HVAC thermostat with no hub required
  • Supports underfloor heating, fan coils, and ventilation systems
  • 10 V DC analogue output for compatible ventilation fans
  • RS485/MODBUS support for professional HVAC integration
  • Built-in temperature and humidity sensing
  • Anti-freeze protection mode
  • Smart schedules with sunrise and sunset automation
  • Acts as Wi-Fi range extender and BLE gateway
  • Powered by ShellyX chip with Shelly platform compatibility

Product information

Use cases
  • Full HVAC system control
  • Manage heating, cooling, and ventilation systems from a single wall-mounted thermostat.
  • Underfloor and fan coil management
  • Directly control underfloor heating valves and fan coil units in residential or commercial spaces.
  • Professional HVAC integration
  • Integrate into larger building management systems using RS485/MODBUS.
  • Energy-efficient climate automation
  • Automate temperature and ventilation schedules to optimise comfort and reduce energy consumption.
Technical specifications
Power and Switching
Power supply
110–240 V AC ±10%, 50/60 Hz
Maximum switching current
2 A (resistive)
Maximum switching current (inductive)
1 A
Temperature and Humidity
Temperature control range
15–35 °C
Temperature measurement accuracy
±0.5 °C
Humidity measurement accuracy
±5%
Operating temperature
−10 °C to +55 °C
Operating humidity
5–95% RH
Connectivity
Wi-Fi
2.4 GHz 802.11 b/g/n
Wi-Fi max RF power
< 20 dBm
Wi-Fi range
Up to 50 m outdoors / 30 m indoors (environment dependent)
Bluetooth
4.2
Bluetooth max RF power
< 4 dBm
Bluetooth range
Up to 30 m outdoors / 10 m indoors
Communication
RS485
Yes
MODBUS
Supported
Physical
Mounting
Wall-mounted indoor installation
Dimensions
87 × 87 × 39 mm
What’s included
  • LinkedGo ST802-B Smart Thermostat
  • Mounting hardware
  • Quick start documentation

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