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Description
Shelly Plus 1PM — Smart relay with energy monitoring
Shelly Plus 1PM is a compact smart relay with built-in power metering, designed for remote control of lights, appliances, and electrical loads up to 16A (3840W).
With ultra-compact dimensions (37×42×16 mm), it installs easily behind existing switches and outlets, in standard electrical boxes, without visible modifications.
Key features
- On/off switching — Remote control of lights and devices via app, voice, or automation
- Real-time energy monitoring — Measures voltage, current, power, and energy consumption
- Built-in protection — Overpower, overvoltage, overheating, and overcurrent
- Time scheduling — Up to 20 timers and weekly schedules
- On-device scripting — Create advanced automations directly on the device
Connectivity
- WiFi 802.11 b/g/n (2.4 GHz)
- Bluetooth 4.2 for setup and local control
- MQTT for open home automation integration
Compatibility
Amazon Alexa, Google Home, Samsung SmartThings, Home Assistant, Node-RED, and any MQTT-compatible system.
Technical specifications
| Power supply | 110–240V AC / 24–30V DC |
| Max current | 16A AC / 10A DC |
| Max power | 3840W (240V AC) |
| Dimensions | 37×42×16 mm |
| Weight | 27 g |
| Operating temp | -20°C to +40°C |
| Processor | ESP32-U4WDH |
| Mounting | In-wall (behind wall switch) |