I use my Labradar at an indoor pistol range. As long as the front of the unit is unobstructed by a barrier, I don't see it being an issue unless there is a temperature issue as discussed by MD earlier.
now this brings up another question i need to ask if its cold outside let`s say 0 ,10 below or even 20 below and inside my shooting house its 45 - 60 degrees now i wonder how well a Labradar will work with a 10 inch x 14 inch open window ?
here`s another thought: while using this Labradar chronograph could it cause Cancer ?
