Description
Three-Phase Smart energy meter for EcoFlow STREAM systems EcoFlow Smart Meter (Shelly Pro 3EM)
The EcoFlow × Shelly Smart Meter is a three-phase energy meter for DIN rail mounting, based on the Shelly Pro 3EM model, designed to monitor energy consumption in real time with high precision. It supports communication via WiFi, LAN, and Bluetooth, allowing integration with EcoFlow systems such as OASIS or STREAM, as well as advanced automation and data export features. Ideal for residential, commercial, or industrial environments that require energy management and optimization, with the possibility of local storage and remote control.
Main features:
Based on Shelly Pro 3EM
Three-phase measurement with external current transformers (120A CTs)
Communication via WiFi, LAN, and Bluetooth for installation and monitoring
Compatible with EcoFlow STREAM and OASIS systems
Works with the EcoFlow app
Compatible with Alexa, Google Home, Samsung SmartThings, and Homey
Supports Modbus RTU for industrial applications and advanced integrations
Measures energy consumption and injection (4-Quadrant) – ideal for photovoltaic systems
Internal data storage with 1-minute resolution for up to 60 days
Support for Webhooks, MQTT, JSON RPC, and mJS scripting
Integration with the EcoFlow cloud and CSV data export
DIN rail mounting with compact dimensions
Real-time measurement of voltage, current, power, and power factor
Internal temperature sensor and phase sequence error detection
Status indicator LEDs: power, WiFi, LAN, and energy count
Specifications:
Electrical measurements
- Voltmeters (RMS per phase): 100 – 260 V
· Accuracy: ±1 %
Ammeters (RMS per CT on each phase + neutral): 0 – 120 A
· ±1 % (2 – 120 A)
· ±2 % (1 – 2 A)
· ±5 % (0 – 1 A)
Types of energy/power measured:
· Active and apparent
· Fundamental active energy
· Fundamental reactive energy
· Power factor
Communication
- WiFi: 802.11 b/g/n
· Band: 2400 – 2495 MHz
· Power: < 20 dBm
· Range (varies locally):
· Up to 50 m outdoors
· Up to 30 m indoors
- Bluetooth: 4.2
· Range (varies locally):
· Up to 30 m outdoors
· Up to 10 m indoors
- LAN: dedicated Ethernet port
Processing and automation
- CPU: ESP32
- Flash: 16 MB
- Webhooks: up to 20, with 5 URLs per hook
- Scripting: mJS
- MQTT: Yes
- Data export:
· CSV for recorded values
· JSON via RPC
Power supply and consumption
- Supply voltage: 100 – 260 VAC, 50/60 Hz
- Consumption: < 3 W
Environmental conditions
- Operating temperature: -20 °C to 40 °C
- Humidity: 30 % to 70 % RH
- Maximum altitude: 2000 m
Installation and dimensions
- Mounting: DIN rail
- Dimensions (H×W×D): 94 × 19 × 69 mm
Notes:
Installation Recommendations:
- Installation must be performed by a qualified electrician
- LAN should only be connected/disconnected with the equipment powered off
Certification: CE Compliance (2014/53/EU, 2014/35/EU, among others)
User Button:
- Press 5 s to activate AP mode
- Press 10 s for factory reset
Count LED: Flashes red with a frequency proportional to the measured energy.
Includes:
1 x Three-phase energy meter
2 x Screws
1 x User manual
Barcode: 4895251644747
Reference: ECMEDIDORTRI


