Sonoff PowCT reporting goes to zero when relay toggled off?

[errolt]

Hi All,

To my understanding the relay in the Sonoff PowCT is an independent dry contact that can be used to switch anything.

But, even though the relay isn't connected to anything, if I toggle the relay to off then all the power readings goes to zero? The actual power consumed didn't change, but Tasmota reports zero power.

Toggle on:

Toggle off:

Why is this?

Thank you,
Errol

[sfromis]

SetOption21 controls whether energy monitoring continues while relay power off. The default is disabled.

[errolt]

Thank you. I would never have guessed that there is a setting for that, or that the default would be disabled. Especially for the PowCT...