Shelly 2.5 Double Relay Switch and Roller Shutter WiFi Open Source Wireless Home Automation Dual Power Metering iOS Android Application (4 Pack UL)


Product Description


А small diamond brought together the best experience and engineering

  • Extremely small: just 39 x 36 x 17mm
  • Shelly 2.5 fit everywhere, under the existing wall console even if there are a lot of cables.
  • 30% smaller than Shelly 2
  • 5% smaller than Shelly 1

Shelly 2.5 maximum load is 2x2300W or 2x10A without any issue Independent dual power metering for each channel overload and temperature protection detailed history

Shelly 2.5 comes with a programming/debug header which can be used to flash alternative firmware on the device. It has an ESP8266 inside, with a 2MB flash chip. A USB-to-UART adapter is needed as well as a reliable 3.3V with at least 350 mA drive capability

Shelly 2.5 Double Relay Switch and Roller Shutter control any 110-230V roller shutter, motorized curtains or awning


No more wiring issues. You can revert AC or External switch poles whenever you need.

Warning: Both relay inputs are interconnected and should be to the same pole

Internal temperature sensor for overheating protection. If the PCB temperature goes at danger level for any reason, the device will switch off.


  • Power supply - 110-230V ±10, 50/60Hz AC and 24-60V DC Shelly 2.5 is compatible with all major international voltage standard
  • Wireless 802.11 b/g/n(2.4 GHz) - Shelly 2.5 can connect directly to any Wi-Fi network, no HUB required or can operate as an Access Point.
  • Maximum load per output - 10A / 230V 50/60Hz. You can control a wide range of home appliances and office equipment
  • Dual power metering - Shelly 2.5 has two integrated precise power meters. You can measure the consumption for each channel separately.
  • Overheating protection - Internal temperature sensor for overheating protection
  • Double relay switch & roller shutter functionality - You can set up Shelly without the need of any additional controller or hub, thanks to the embedded web interface.
  • Embedded web server - You can set up Shelly without the need of any additional controller or hub, thanks to the embedded web interface.
  • Shelly mobile app control - Turn devices on/off directly from your smartphone or tablet. You can control lighting, heating and any other connected electrical appliance in your house.
  • Sunrise/sunset schedules - Shelly 2.5 can automatically turn on/off based on the sunrise and sunset hours
  • Weekly schedules - Choose a time and create custom daily schedules for your devices.
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