# LinkedGo ST1820 - Smart Thermostat

- Canonical URL: https://www.netxl.com/controllers-and-hubs/linkedgo-st1820-smart-thermostat/
- Brand: Shelly
- SKU / part number: LINKEDGO-ST1820-SMART-THERMOSTAT
- EAN (GTIN-13): 3800235260630
- Category: Controllers & Hubs (https://www.netxl.com/controllers-and-hubs/)

## Pricing (GBP, guest pricing — trade customers see account pricing via the API)
| Quantity | ex VAT | inc VAT |
| --- | --- | --- |
| 1+ | £51.71 | £62.05 |
| 5+ | £51.71 | £62.05 |
| 10+ | £51.71 | £62.05 |

## Availability and shipping
- Availability: 47 in stock
- Shipping: Royal Mail Tracked - Next Working Day — £7.19, 1 working day(s)

## Description

The LinkedGo ST1820 powered by Shelly is a WiFi-operated smart thermostat designed for precise management of electric and water-based heating systems. Featuring direct valve control, a dry contact relay, and built-in humidity sensing, it offers versatile automation with no hub required.

The LinkedGo ST1820 is a WiFi-operated smart thermostat powered by Shelly, engineered for accurate climate control across water-based, gas, and electric heating setups. Equipped with the ShellyX chip, it integrates directly with your wireless network without requiring an external hub, while also operating as a WiFi range extender and BLE gateway.
Featuring direct valve control supporting up to 2A resistive or 1A inductive loads, the ST1820 includes an integrated dry contact relay to switch gas boilers or pellet stoves on and off. It also features built-in humidity sensing alongside temperature offset capabilities for accurate readings, as well as an anti-freeze safety mode to protect pipes during long absences.
Full compatibility with the Shelly Smart Control app enables custom schedules based on daily routines or sunrise and sunset times. Setup is straightforward using local WiFi connections to streamline automated temperature management throughout your property.

## Key highlights

- Built-in WiFi and Bluetooth connectivity (no hub required)
- Powered by ShellyX chip
- Acts as a WiFi range extender and BLE gateway
- Dry contact relay for gas boilers and pellet stoves
- Integrated temperature and humidity sensors
- Anti-freeze pipe protection function
- Temperature control range: 15°C to 35°C
- Smart schedule and scene automation

## Specifications

| Specification | Value |
| --- | --- |
| WiFi | 1 |
| Power Supply | 240V |
| 2.4Ghz Technology | Wi-Fi 4 (802.11n) |
| Connectivity | Bluetooth & WiFi |
| WiFi Extender | 1 |
| Purpose | Temperature Control |
| Bluetooth | 1 |
| Location | Indoor |

## Programmatic access

- This page in HTML: append a trailing slash instead of `.md`
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- MCP server for AI agents: https://mcp.netxl.com
- Machine-readable site index: https://www.netxl.com/llms.txt
- API documentation: https://www.netxl.com/api-docs.md