NUT and APC USB limiting input voltage reading

I switched from APC UPS Daemon to Network UPS Tools as the first one was stoping polling my UPS from time to time.

I manage to get it configured and all data is available in my HomeAssistant setup.

The problem is that I notice that the input voltage reading is limited to 230 Vca, this never happened before when I was using apcupsd. Indeed I have one automation in node-red that detects when Voltage is over 232 Vca and send me a message to my mobile (Yes my electricity provider is not reliable at all, could have more that 240Vca in the lines)

Why APC UPS Daemon shows me values <= 230Vca ? Some one faced same issue?

Thanks,
Facundo

Hi, coming back to this issue, it is still there, indeed I realised that when there is no power and UPS running on batteries, Inlet Voltage reading is 128 Vca instead of Zero !!

Anybody had same issue ?

Thanks!