I would like to have a trigger when the power is above a certain treshold (so that I can turn on another device).

See my comment but also make it able to switch on a plug when the power is above a certain value

@Damien_L I would like to have it the other way around: turn on a plug when the power gets above a certain treshold. Usecase: I have a pump running cold water through black hoses. The black hoses are...