Shelly EM Mini Gen4 WiFi/Zigbee-Operated 16A Smart Energy Monitoring Device

The Shelly EM Mini Gen4 is a compact yet powerful smart energy meter designed to deliver precise, real-time insights into your energy usage. Measuring up to 16A at 240V AC, it lets you track the power consumption of connected devices with exceptional accuracy helping you identify waste, optimize efficiency, and manage electricity costs more intelligently. Despite its small size, the EM Mini Gen4 is equipped with Shelly’s advanced Gen4 chipset, offering multi-protocol connectivity including WiFi, Zigbee, Bluetooth, and full Matter certification for seamless integration into virtually any smart home or automation ecosystem.

This next-generation device combines the flexibility of the acclaimed Shelly firmware with improved processing power and memory for faster, more stable performance. Designed for retrofit installation, it fits neatly behind existing wall switches, sockets, or in tight electrical enclosures, making it ideal for professional installers or DIY smart home enthusiasts looking to enhance monitoring without altering their setup. It also doubles as a WiFi and Zigbee range extender and functions as a Bluetooth gateway, strengthening your network while connecting your devices.

Beyond simple monitoring, the Shelly EM Mini Gen4 enables preventative energy analysis, detecting unusual power patterns that may signal appliance inefficiency or faults before they escalate. Through the Shelly Smart Control app or your preferred automation system, you can create intelligent scenes and schedules that react to your power data in real time, turning devices off automatically during inactivity or excessive consumption periods.

• Compact design; fits behind wall switches and sockets

• Multi-protocol support: WiFi, Zigbee, Bluetooth, and Matter

• Real-time energy monitoring up to 16A / 240V AC

• Works with Shelly Smart Control, Home Assistant, and other platforms

• Acts as WiFi & Zigbee extender and Bluetooth gateway

• Supports scripting, MQTT(S), HTTPS, and WebSockets

• TLS-secured communication for enhanced safety

The Shelly EM Mini Gen4 proves that size doesn’t limit intelligence. It’s the perfect tool for gaining deeper visibility into your energy habits, cutting unnecessary costs, and building a more efficient, smarter environment, whether at home, in the office, or across an entire facility.

Specifications

Power

Power supply: 110-240V ±10% 50/60Hz AC

Power consumption: < 1W

External protection:

16A, tripping characteristic B or C

min. 6kA interrupting rating

Energy limiting class 3

Max. measurement voltage: 240V~

Max. measurement current: 16A

Max. measurement power: 3840W

Features

Ambient temperature: -20°C to 40°C / -5°F to 105°F

Humidity: 30% to 70% RH

Webhooks (URL actions): 20 with 5 URLs per hook

MQTT: Yes

UDP: Yes

Scripting: Yes

Voltmeter (AC): 110-240V~ 50/60Hz

Voltmeter accuracy: ±1%

Ammeter (AC): 0-16A

Ammeter accuracy: ±1%

Power and energy meters:

• Active power

• Active energy

Measurement data storage: At least 10 days of 1 min data resolution

Data export:

CSV for PQ recorded values

JSON format export through RPC

Connectivity

Wireless/WiFi Protocol: 802.11 b/g/n/ax (2.4 GHz)

WiFi Frequency: 2412-2472 MHz

Wi-Fi Range (depending on local construction):

Up to 50m/160ft outdoors

Up to 30m/100ft indoors

Zigbee Protocol: 802.15.4

Zigbee Repeater: Yes

Zigbee RF Bands: 2400-2483.5 MHz

Zigbee Range (depending on local construction):

Up to 300m outdoors

Up to 100m indoors

Bluetooth Protocol: 5.0

Bluetooth Range (depending on local construction):

Up to 30m/100ft outdoors

Up to 10m/33ft indoors

Dimensions

(H x W x L): 29 x 34 x 16 ±0.5 mm / 1.11 x 1.34 x 0.63 ±0.02 in