Hi all, this is my first post (of many, I expect). I am trying to monitor a variable voltage signal from 10-20vdc and this signal will have intermittent spikes of up to 200v. What I am trying to do is find a way to ignore the spikes (they have a purpose so I don't want to get rid of them), and use the 10-20v as a trigger for my device. I am concerned that the 200v spikes will damage any measurement circuits or mess up the readings. Is there a relatively simple way to do this? Sorry if it is a bit of an obtuse question.