Shelly Plus PM Mini
£13.99
Out of stock
Overview
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
Product information
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.
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
What’s included
- Shelly Plus PM Mini power meter
