Not really. I have the CED M2 and the electronics are on the bench. I was checking a variety of 9mm loads and was trying to finish before it started raining. I shot the support for the light diffuser(CED calls it a skyscreen). Boy! Was I shocked when pieces went flying. I've nicked them before but this is the first time for a direct hit. I was almost finished when it happened so I had enough data to work with.
Luckily, I prepared for this by buying spares. Now I'm down to three spares(a full set is four). I can't imagine the feeling if I had shot one of the sensors or if the base unit was located out in front. You can see what I'm talking about here:
http://www.cedhk.com/shop/categories...6-Accessories/