
Smart Power Meter Switch 20A | Sonoff POWR320D
The SONOFF POWR320D (POW Elite) is a Wi-Fi smart switch with a built-in power meter and LCD screen. It switches loads up to 20 A on 100-240 V AC, measures how much electricity the connected appliance uses, and lets you control it from your phone over 2.4 GHz Wi-Fi.


20 A switching: The POWR320D is rated for up to 20 A. This makes it suitable for appliances that draw more current than a standard 10 A smart switch can handle, within that 20 A limit.
Real-time power data on the LCD: The built-in LCD shows the power data on the device itself, and the same readings (power, voltage, current and energy) are shown in the app. You can check the consumption at the panel without opening your phone.
Overload protection: You set limits for power, current and voltage in the app. If the load goes above a limit you set, the POWR320D turns the appliance off automatically, which helps protect the appliance and the wiring.
Six months of consumption history: The device keeps hourly power consumption history for up to six months, and the data can be exported to an Excel file. This helps you see when and how much an appliance consumes and compare usage over time.
ESP32 chip and voice control: The POWR320D is built on the ESP32 chip and works with Amazon Alexa and Google Home voice control, so the connected appliance can be switched by voice as well as from the app.
Good to know
Maximum current is 20 A. The device needs a 2.4 GHz Wi-Fi network and is wired to mains voltage (100-240 V AC).
Technical Specifications
| Model | POWR320D |
| Input | 100-240 V AC, 50/60 Hz |
| Max Current | 20 A |
| Wi-Fi | IEEE 802.11 b/g/n, 2.4 GHz |
| Chip | ESP32 |
| Display | Built-in LCD |
| Energy History | Hourly data, up to 6 months, Excel export |
| Housing Material | PC V0 |
| Dimensions | 98 × 54 × 31 mm |
| Voice Assistants | Amazon Alexa, Google Home |
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