Voltmeter exists?

I would really like to be able to control the battery voltage. And depending on the voltage, turn the payload on and off. Very relevant for solar backup systems.

Do you mean using voltage as triggers?

Yes. at different battery voltages, you can perform or complete certain tasks. Boiler, watering the lawn.

Hi, please submit the request to Sonoff and let them evaluate if this product can be iteratively updated.

It would be a brilliant solution if such a meter was simultaneously powered with the measured current. This would enable isolated voltage/current measurement of solar panels. I am currently using PZEM-025 for this purpose, but it cannot send data over the network to another deviceā€¦