Shelly PM Mini Gen3
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Shelly PM Mini Gen3

£12.99

1 in stock

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Overview

Shelly PM Mini Gen3 is an ultra-compact Wi-Fi smart power meter designed for precise, real-time energy monitoring of electrical circuits and appliances. It is small enough to fit behind wall switches or sockets, making it ideal for discreet retrofits where space is limited and switching control is not required.

Built on the ESP-based Shelly Gen3 platform with increased flash memory, the device delivers fast local response and reliable long-term operation. It provides power and energy monitoring only and contains no internal relay, meaning it does not switch loads. The module works without a hub, integrates directly with Home Assistant and other automation platforms, and supports open protocols for local and cloud-based energy analysis.

Key features

  • Single-channel Wi-Fi power meter
  • Supports monitoring loads up to 16 A at 240 V AC
  • Real-time power and energy consumption measurement
  • Ultra-compact design for in-wall installation
  • ESP-based Shelly Gen3 processor with increased flash memory
  • Improved terminal durability
  • Integrated Wi-Fi range extender functionality
  • Bluetooth gateway support
  • No hub required for operation
  • Supports scripting and advanced automation
  • Compatible with MQTT, WebSocket, HTTPS, UDP, TLS, and webhooks

Product information

Use cases
  • Energy monitoring of lighting circuits
  • Monitor power usage and energy consumption of lighting circuits without affecting switching behaviour.
  • Appliance energy tracking
  • Track real-time and historical energy usage of fixed appliances to identify inefficiencies or abnormal consumption.
  • Sub-circuit power monitoring
  • Install behind switches or sockets to monitor individual circuits for detailed energy analysis.
  • Smart energy dashboards
  • Feed accurate power data into Home Assistant or other platforms to build dashboards, alerts, and optimisation automations.
Technical specifications
Power and Measurement
Power supply
110–240 V AC, 50/60 Hz
Maximum monitored current
16 A
Maximum monitored voltage
240 V AC
Power measurement
Yes
Energy measurement
Yes
Internal relay
No
Connectivity
Wi-Fi
2.4 GHz 802.11 b/g/n
Bluetooth
Yes (gateway and provisioning)
Wi-Fi repeater
Yes
Platform and Control
Processor
ESP-based Shelly Gen3 platform
Local control
Yes
Cloud control
Optional via Shelly Smart Control app
Protocol support
MQTT, WebSocket, HTTPS, UDP
Automation features
Scripting, webhooks, custom certificates
Physical
Mounting
In-wall, behind switch or socket
Dimensions
29 × 34 × 16 mm
What’s included
  • Shelly PM Mini Gen3
  • Quick start documentation

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