Shelly 1PM WiFi Relay Switch With Power Metering

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Control any electrical appliance and measure its consumption

Consumption history, anywhere, at anytime.  Shelly 1PM allows you to monitor the status and history, as well as the current and past electrical power consumption for the day, week, month or year.  Shelly 1PM supports a wide range of AC and DC power supplies allowing you to control a wide range of devices. Intelligently designed to fit in most standard electrical boxes and switches. Shelly 1PM is smaller than two cookies stacked together.


  • Has an embedded webserver
  • Has been designed for installation in a limited space, such as wall mounts, electrical control panels, etc.
  • Can function as a standalone device, as an accessory to a home automation controller, or it may be used as another automation system's component.
  • Can be used for electrical circuits (up to 3.5 kW) with energy consumption monitoring, overload, and temperature protection.
  • Easy control through the Shelly app, various protocols and platforms, as well as voice assistants. 


Power supply AC 110-240V ±10%, 50/60Hz
Maximum load 16A
Power supply DC 30 – 50V
Channels 1 Channel
Dry contacts No
Roller shutter mode No
Device temperature protection Yes
Overload protection Yes
Power measurement Yes
Working without a neutral line No
Operational temperature 0°C to + 40 °C
Device power consumption < 1 W
Intelligent On/Off Yes
Local and remote control Yes
Sunrise/Sunset Yes
Weekly Schedule Yes
UL Listed option Yes
Wireless Yes
Wi-Fi Protocol 802.11 b/g/n
Wi-Fi Radio frequency 2412 - 2484 MHz
Wi-Fi Radio signal power 1mW
Wi-Fi Range up to 50 m outdoors and up to 30 m indoors (depending on the building materials)
Size 41mm x 36mm x 17mm
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