Pre Flashed Tasmota ESP32-C3 Power Monitoring Works with Home Assistant
 
The measurement error of active power about 0.2%
The measurement error of effective current is 0.5%
The measurement error of effective voltage is 0.5%
 
Specification:
 
Chipset: ESP32C3
Power: <=0.5W
Voltage range: AC 100-250V, (50/60Hz)
Max current: 10A
Transmission mode: Wi-Fi communication
Dimensions: (L)40*(W)40*(H)20mm
Color: White
Humidity: 5%-95%
Wireless Frequency: 2.4Ghz
Working Temp: ?20?-75

GPIOs
 
GPIO20:CSE7766 Rx
GPIO3:  Button
GPIO4:  Switch
GPIO6:  Relay
GPIO7:  LedLinki
 

Product Highlights
Power Monitoring Mini Relay Made Made For Tasmota is a Tasmota relay or switch product for local control, inching/self-lock use cases, and Home Assistant automation.
Ideal For
Relay-based smart control
Switch and curtain automation
Local Home Assistant workflows
Compatibility
Designed for local smart home use with Tasmota, MQTT, and Home Assistant workflows. This product is suitable for users who prefer local control and privacy-friendly automation.