Shelly PRO EM-50 WIFI Electricity Consumption Meter
The Shelly PRO EM-50 WIFI is an advanced electricity consumption meter that revolutionizes the way you monitor and control energy consumption in your home, commercial or industrial facility. Equipped with a two-channel, single-phase energy meter, it enables precise measurement and reporting of both total energy consumption and voltage, current, active and apparent power in real time.
Reliability and security
Using the latest gen2 firmware technology and LAN and Wi-Fi connectivity, the Shelly PRO EM-50 offers flexibility and reliability in operation. It can operate standalone on a local LAN or Wi-Fi network, as well as integrate with cloud services for home automation via MQTT, HTTP and WebSocket. All incoming connections are handled by TLS protocol, which guarantees data security.
Full control of energy consumption
The meter reports both total energy consumption and voltage, current, active and apparent power per phase in real time. The data is stored in non-volatile memory, allowing it to be read for up to 60 days with an interval of every minute. This allows the user to track and analyze energy consumption, so that informed decisions can be made about its efficient use.
Easy setup
The Shelly PRO EM-50 allows remote access, configuration and monitoring by both the user and home automation systems, as long as they are on the same network infrastructure. The device has a built-in web interface that allows convenient customization of its settings. What’s more, the simple-to-use interface makes configuring and monitoring the meter easy and intuitive.
| Manufacturer | Shelly |
|---|---|
| Model | Pro EM-50 |
| Dimensions | 94 x 19 x 69 ±0.5 mm |
| Weight | 63 ±1 g |
| Mounting | DIN rail |
| Housing material | Plastic |
| Color | White |
| Ambient temperature | -20 °C to 40 °C |
| Humidity | 30% to 70% RH |
| Maximum altitude | 2000 m |
| AC power supply voltage | 100 – 260 V, 50/60 Hz |
| Power consumption | < 3 W |
| Maximum AC switching voltage | 240 V |
| Maximum switching current | 2 A |
| Internal temperature sensor | Yes |
| Voltmeter (RMS) | 100 – 260 V |
| Voltmeter accuracy | ±1% |
| Ammeters (RMS using CT) | 0 – 50 A |
| Accuracy of ammeter | ±1% (5 – 50 A), ±2% (0 – 5 A) |
| Power and energy meters: | Active and apparent power, active and apparent energy, power factor |
| No load threshold | 30 VA per phase |
| Measurement data storage | At least 60 days with data resolution of 1 min |
| Data export | CSV for recorded PQ values, JSON format export via RPC |
| Wi-Fi range | Up to 30 m indoors and 50 m outdoors (depends on local conditions) |
| Bluetooth protocol | 4.2 |
| Bluetooth range | Up to 10 m indoors and 30 m outdoors (depends on local conditions) |
| CPU | ESP32-D0WDQ6 |
| Flash memory | 16 MB |
| Webhooks (URL shares) | 20 with 5 URLs per hook |
| Scripts | Yes |
| MQTT | Yes |
| CoAP | No |
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