Device is working fine. But need some improvement in application level.

1. The power Button on the Toya smart app is not clear whether it is button or an icon. It should be popup the message for-confirmation after the click. if you touch accidently on the icon of power the breaker will be off.
2. Metering should have feature to filter and calculate the electricity usage on peak hours and off-peak hour of the month. Different electricity tariff rate enter (peak hour and off-peak hour) should also be available.
By adding above features we can easily calculate the electricity bill of peak-hours and off-peak hours.
3. Energy meter main page on each phase shows combine power directions. It should be show on both directions.

Thank you.

The shipment was fast. Arrived very well packed, it looks good quality, it needs to be tested. Good purchase. Good seller.

The device received a screen does not light up apparently no batteries. I will check the normal device as in the photo

All very well, consider adding a manual on how to interpret the measures.