LinkedGo ST1820 - Smart Thermostat
LinkedGo ST1820 – WiFi-Operated Smart Thermostat with Advanced Features
The LinkedGo ST1820 smart thermostat, powered by Shelly, offers precise management of both water-based and electric heating systems. With advanced automation, built-in safety functions, and seamless smart home integration, it ensures both comfort and energy efficiency.
Equipped with the ShellyX chip, it provides full Shelly capabilities, including Wi-Fi and Bluetooth connectivity, hub-free operation, and the ability to act as a Wi-Fi extender and BLE gateway. It directly manages heating valves, signals boilers or pellet stoves, and supports electric underfloor heating with connected relays for maximum flexibility.
Designed for safety and accuracy, it features an anti-freeze function to protect pipes, built-in humidity sensing, and adjustable temperature/humidity offsets. Create custom schedules, automate based on sunrise/sunset, and enjoy effortless climate control through the intuitive interface and Shelly Smart Control app.
Key Features
• Wi-Fi operated – no hub required
• Simple and intuitive interface for setting target temperature
• Dry contact relay for gas boilers, pellet stoves, and heating sources
• Flexible heating control: valves, boilers, and underfloor heating
• Anti-freeze function to protect pipes during long absences
• Built-in temperature and humidity sensing with adjustable offsets
• Smart schedules and sunrise/sunset automation
• Acts as a Wi-Fi range extender and BLE gateway
• Full Shelly capabilities with compatibility across major smart home platforms
Applications
• Water-based heating systems (valves, boilers, pellet stoves)
• Electric underfloor heating (via connected relay)
• Energy-saving automation with smart schedules
• Pipe protection with anti-freeze safety function
• Smart home integration for flexible heating management
Technical Specifications
Power
• Power supply: 110–240V ±10% 50/60Hz AC
• Max switching current: 2A resistive load / 1A inductive load
Features
• Temperature control range: 15–35℃
• Temperature measurement accuracy: ±0.5℃
• Humidity measurement accuracy: ±5%
• Ambient temperature: -10°C to 55°C / 15°F to 130°F
• Ambient humidity: 5–95%
Connectivity
• Wi-Fi protocol: 802.11 b/g/n (2.4 GHz)
• Wi-Fi RF band: 2401–2486 MHz
• Wi-Fi max RF power: < 20dBm
• Wi-Fi range: up to 50m outdoors / 30m indoors (depending on construction)
• Bluetooth protocol: 4.2
• Bluetooth RF band: 2400–2483.5 MHz
• Bluetooth max RF power: < 4dBm
• Bluetooth range: up to 30m outdoors / 10m indoors
Dimensions
• Size (H x W x L): 85.5 x 85.5 x 38 mm