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Shelly EM

Original price £54.99 - Original price £54.99
Original price
£54.99
£54.99 - £54.99
Current price £54.99
Availability:
in stock, ready to be shipped

Shelly EM is a Wi-Fi energy monitor and contactor control device designed to monitor the energy consumption of electrical appliances, circuits, and systems in real time without requiring a hub. It connects directly to a Wi-Fi network and allows users to track power usage, set automations, and identify opportunities for efficiency. The device supports dual power metering for two circuits and integrates with smart home systems for remote control, data logging, and automation.

Key Features
  • Wi-Fi energy monitor with no hub required
  • Dual independent power metering for two circuits
  • Monitors real-time energy consumption and usage history
  • Contactor control output (dry contact) for automated load control
  • Compatible with the Shelly app and remote access via cloud or local network
  • Works with voice assistants and home automation platforms
  • Internal data storage with configurable history and alerts
Use Cases

Energy Monitoring

Monitor real-time and historical energy usage for appliances, circuits, or entire electrical installations.

Load Automation

Automatically switch high-power devices such as heaters, boilers, or EV chargers using the built-in contactor control output.

Energy Efficiency Analysis

Identify high-consumption devices and optimise electricity usage to reduce energy costs.

Home Automation Integration

Integrate energy monitoring data into smart home platforms using REST API, MQTT, or supported voice assistants.

What’s Included
  • Shelly EM energy monitor module
Technical Specifications
Power
Power supply AC: 110–230V ±10%, 50/60Hz
Measurement
Measurement channels: 2

Maximum current: Up to 120A per channel (with compatible current transformer)

Power measurement: Yes
Contactor Control
Output type: Dry contact

Maximum load: 2A at 230V AC
Operational
Operational temperature: 0°C to +40°C

Device power consumption: < 1 W
Connectivity
Wireless protocol: Wi-Fi 802.11 b/g/n

Radio frequency: 2412–2484 MHz

Radio signal power: 1 mW

Range: Up to 50 m outdoors and up to 30 m indoors (depending on building materials)
Dimensions
Size: 42 × 36 × 14 mm
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