https://www.amazon.de/gp/product/B0777BWS1P

There are three clones -- use the device type Teckin:

• Gosund SP1 (Version 2.3)
• Teckin
• BlitzWolf SHP2 (Version 2.3)

For more pictures see: https://www.bastelbunker.de/gosund-sp1-mit-tasmota/

Calibration

if you have another (better) volt and power meter: in the web-interface -- console: Enter the (correct) reading with the following commands should increase the precision

• VoltageSet [Volt]
• PowerSet [Watt]

You can use any consumer eg. a lamp or a pressing iron.

Details