Shelly Plus 1PM Relay Switch with Power Monitor-Gen 2

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Next Generation WiFi Relay Switch, 1 Channel 16A, with Power Metering

From automatization of the lights to electrical appliances control, Shelly Plus 1PM provides precise power metering and free cloud data storage. Small enough to fit behind every wall switch or wall socket, Shelly 1PM is retrofit and can be installed in less than 10 minutes.

Control and measure power consumption for wide range of home appliances and office equipment (lights, power lines, security systems, heating radiators, air conditioners, etc.) from anywhere with the smallest WiF relay switch, with Bluetooth connection 

  • Wi-Fi operated - Connects to your WiFi network. No HUB required!
  • Bluetooth - Add devices quick and easy via Bluetooth connection, using Shelly Cloud App
  • Power metering with data storage
  • Wide range of voltages supported
  • Extremely fast processor – ESP32
  • Enhanced safety – Overpower, overvoltage and over-temperature protection
  • Enhanced security - MQTT and WSS support, TLS and custom certificates support
  • Improved API interface

Track your power consumption and save money

You can now monitor and analyze the power consumption of your electrical appliances and save money on electricity bills. Shelly Plus 1PM has an integrated precise power meter that allow you to measure the power consumption and features free data storage for analysis.

Automate any electrical appliance and control it remotely

With Shelly Plus 1PM you can automate any electrical appliance in your home and control it remotely. Shelly Plus 1PM can control appliances with large load which makes it perfect for kitchen appliances and domestic systems monitoring and control. You can get precise measurement of the power consumption of each appliance and switch on/off remotely, no matter where you are.

Set smart scenes and be prepared for everything

Reveal the full potential of Shelly Plus 1PM by combining it with other devices from your home network! Set Shelly Plus 1PM to activate custom scenes based on hour, light, or various occurrences. For example, you can set Shelly Door/Window sensor to report a porch door opening and activate Shelly Plus 1PM to turn on the hot tub heaters only in the hours after 8PM.


WiFi Connect Shelly Plus 1PM to your WiFi network. No HUB required

Bluetooth Add devices quick and easy via Bluetooth connection, using Shelly Cloud App

Wide range of voltages supported Shelly Plus 1PM can be powered by 110-240 V AC and 24-30 V DC

Power metering with data storage Shelly Plus 1PM provides precise monitoring of the power consumption

Extremely fast processor For immediate command execution and notification

Enhanced safety Enhanced over-temperature protection with software thresholds for control and prevention of failures

Enhanced security MQTT and WSS support, TLS and custom certificates support for a broad range of use cases

Improved API interface Broad range of cloud connections and local integrations with much lower integration cost


Power supply AC 110-230V ±10%, 50/60Hz
Maximum load 16A
Power supply DC 24 – 30V
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
HTTP/HTTPS webhooks Yes
Custom scripts (mJs) Yes
Operational temperature -20°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 No
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)
Bluetooth Yes
Size 42 x 38 x 17mm
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