Shelly EM Mini Gen4

Shelly EM Mini Gen4 – Compact Smart Energy Meter

Shelly EM Mini Gen4 is a compact, high-performance energy meter designed for precise power monitoring in space-constrained installations. Built on enhanced Gen4 firmware and upgraded hardware, it delivers advanced flexibility for professional integrators and smart home users alike.

The device operates standalone on a local Wi-Fi network or integrates seamlessly with cloud and third-party automation systems using MQTT, HTTP, WebSocket, and secure TLS connections. It also introduces Zigbee connectivity and full Matter compatibility, making it a future-proof solution for modern smart environments.

Key Features

• Power Monitoring: Accurately measures active power and energy consumption of connected loads.
• Compact Design: Ultra-small form factor ideal for tight spaces behind switches, sockets, or wall boxes.
• Enhanced Firmware: Gen4 firmware flexibility with scripting and advanced automation options.
• Improved Processor: Upgraded hardware for faster performance and improved reliability.
• Zigbee, Wi-Fi & Bluetooth: Multi-protocol wireless MCU ensures secure and flexible connectivity.
• Matter Compatible: Designed for next-generation smart home interoperability.
• Embedded Web Interface: Monitor energy usage and manage settings directly from a browser.
• Remote Access: Monitor and configure the device remotely within the same network infrastructure.

Smart Network Extensions

• BLE Gateway: Acts as a bridge between Shelly BLU devices and the Shelly ecosystem.
• Zigbee Range Extender: Expands Zigbee network coverage for IoT devices.
• Wi-Fi Range Extender: Enhances Wi-Fi signal reach for smart devices.

Integrations & Automation

Shelly EM Mini Gen4 supports a wide range of integrations including Home Assistant and other third-party platforms via:

• HTTP & HTTPS APIs
• MQTT & MQTTs
• Webhooks
• UDP
• Custom scripting via Shelly Script

Typical Use Cases

• Real-Time Energy Monitoring: Track power usage of appliances and circuits.
• Energy Efficiency Optimization: Identify high-consumption devices and reduce energy costs.
• Appliance Health Monitoring: Detect abnormal power usage patterns over time.
• Cost Management: Estimate running costs of individual electrical loads.
• Space-Efficient Retrofitting: Ideal for installations with limited space.
• Remote Monitoring: Monitor consumption even when away from home.

Technical Specifications

Physical

• Size: 29 × 34 × 16 mm
• Weight: 13 g
• Mounting: Wall console
• Housing: Plastic (White)

Electrical

• Power Supply: 110–240 V AC
• Power Consumption: < 1 W
• Maximum Measurement Current: 16 A
• Maximum Measurement Power: 3840 W

Measurement Accuracy

• Voltage Accuracy: ±1%
• Current Accuracy: ±1%
• Data Storage: Minimum 10 days (1-minute resolution)
• Data Export: CSV and JSON

Wireless Connectivity

• Wi-Fi: 802.11 b/g/n/ax
• Bluetooth: 5.0
• Zigbee: 802.15.4

Firmware Capabilities

• Schedules: Up to 20
• Webhooks: 20 (5 URLs per hook)
• Scripting Support: Yes
• MQTT & UDP Support: Yes
• Advanced Scheduling & KVS: Yes