MICHAEL: why the blue painters tape over the sensors when your ProChrono DLX is not in use? I wipe the sensors off mine with a lens cloth at the close of each session and put the whole thing in it's box (no, not original) and put it away for another day on the range. By the by, I've had my DLX for less than a year and find that it performs as advertised. I only purchased it when my TX200 started shooting below par, and it told me what I needed to know. One word of caution here: get a reading on all your guns, so that when it begins shooting shooting differently, you'll have the numbers to back you up for repairs. That way you don't buy a piston seal when all you needed were breech 0 rings. Orv.I've been using the ProChrono DLX for many years. I almost exclusively use it indoors, and I always put blue painters tape over the sensors when not in use.
-Michael
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