SONOFF POW Elite ESP32 WiFi power meter switch handles up to 20A load

SONOFF POW Elite is an ESP32-powered smart power meter switch that can handle up to 20A max load to monitor the power consumption of all appliances in a whole room.

The data can be visualized in real-time on the built-in LCD or via the eWelink app, up to six-month of hourly power consumption history can be saved, and the system can also be integrated with third-party solutions such as a Home Assistant, IFTTT, and Alexa Energy dashboard.

SONOFF POW Elite ESP32 Power Meter

SONOFF POW Elite specifications:

  • WiSoC – Espressif Systems ESP32 dual-core Xtenxa processor @ up to 240 MHz with 2.4 GHz WiFi 4 and Bluetooth 4.2 connectivity
  • Wireless – 2.4GHz 802.11 b/g/n WiFi 4 (Bluetooth does not seem to be used)
  • Power Input/Output
    • POWR316D model – 100-240V~ 50/60Hz 16A Max
    • POWR320D model – 100-240V~50/60Hz 20A Max
  • Dimensions – 98 x 54 x 31mm (DIN Rail mountable)
  • Casing Material – PC V0 (Tested with UL94v-0 safety standard)
  • Safety – Overload protection with user-defined power, current, and voltage thresholds.
  • Certifications – CE, FCC, SRRC

ESP32 20A power meter

The eWelink app for iOS or Android is used not only to monitor the power consumption but since the device is also a switch, you can set schedules and scenes (e.g. turn off when power consumption > 20 kWh), and configure Amazon Alexa or Google Home to control the switch with voice commands. There’s also a LAN function so you’d even need access to the Internet to control the switch after the initial setup.

6-month power consumption history power meter

The power consumption data can also be exported to Excel or another spreadsheet for further processing. More details may be found in the documentation. SONOFF POW Elite is really new, and right now only the official eWelink app is supported, but there should also be support for the popular ESPHome and Tasmota open-source firmware given enough time.

The SONOFF POWR316D (16A) and POWR320D (20A) models are up for pre-order on ITEAD shop for $16.99 and $19.99 respectively with shipping scheduled to start on June 23, or less than one week from now.

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