Real-Time Solar Power Measurement with Smart Switch

I recently came across this smart switch on AliExpress and am considering replacing my current solar panel circuit breaker with it. I have a few questions regarding its functionality:

  1. Negative Power Measurement: Can this switch measure negative power, which would indicate solar production feeding back into the grid?
  2. Real-Time Data: Does it provide real-time power measurements, updating every second, or are the measurements taken at intervals?
  3. Zigbee and Wi-Fi Versions: Are both the Zigbee and Wi-Fi versions capable of real-time power measurement, ensuring compatibility with different smart home ecosystems?

I would greatly appreciate any insights or recommendations on this matter. Thank you!