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Shelly Plus PM Mini

Tested with Home Assistant
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Original price £13.99 - Original price £13.99
Original price
£13.99
£13.99 - £13.99
Current price £13.99
Availability:
Out of stock

Shelly Plus PM Mini is a Wi-Fi-operated smart power meter designed for precise, real-time energy monitoring up to 16A (3840W). As the smallest power meter in the world, it fits behind any wall switch or socket, making it ideal for retrofit installations. It connects directly to Wi-Fi with no hub required and provides free cloud data storage for detailed energy analysis. This device is a power meter only and does not contain a relay, making it suitable for monitoring circuits and appliances without switching control.

Key Features
  • Wi-Fi smart power meter with no hub required
  • Single-channel energy monitoring up to 16A at 240 VAC
  • Ultra-compact design for installation behind switches and sockets
  • Precise, real-time power monitoring with free cloud data storage
  • Wi-Fi range extender and Bluetooth gateway functionality
  • Fast ESP32 processor for immediate response
  • Supports scripting, webhooks, MQTT, WebSocket, HTTPS, UDP, TLS, and custom certificates
  • Compatible with Alexa, Home Assistant, and other automation platforms

Use Cases

Energy Monitoring for Appliances

Monitor real-time and historical energy usage of appliances, lighting circuits, or sockets without controlling the load.

Retrofit Power Measurement

Add accurate power monitoring to existing installations without replacing switches or appliances.

Energy Optimisation and Analysis

Analyse consumption data to identify inefficiencies, reduce energy waste, and optimise usage patterns.

Automation and Data Integration

Feed live power data into Home Assistant or other platforms for dashboards, alerts, and automation logic.

What’s Included
  • Shelly Plus PM Mini power meter
Technical Specifications
Physical
Size (HxWxD): 29 × 34 × 16 mm (±0.5 mm)

Weight: 13 g (±1 g)

Mounting: Wall box

Shell material: Plastic

Colour: White
Environmental
Ambient temperature: -20°C to +40°C

Humidity: 30% to 70% RH

Max altitude: 2000 m
Electrical
Power supply: 110–240 VAC

Power consumption: < 1.2 W
Output / Measurement Ratings
Max measurement voltage: 240 VAC

Max measurement current: 16 A

Max measurement power: 3840 W

Power measurement: Yes

Voltage protection / cutoff: No

Current protection / cutoff: No

Max power protection / cutoff: No
Radio
RF band: 2400–2495 MHz

Max RF power: < 20 dBm

Wi-Fi protocol: 802.11 b/g/n

Wi-Fi range: Up to 30 m indoors / 50 m outdoors (depending on conditions)

Bluetooth protocol: 4.2

Bluetooth range: Up to 10 m indoors / 30 m outdoors
MCU
CPU: ESP32

Flash: 4 MB
Firmware Capabilities
Webhooks (URL actions): 20 (5 URLs per hook)

MQTT: Yes

UDP: Yes

Scripting: Yes
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