They have to show that it is has been tested and is functioning properly.
a radar gun
A radar gun police use to check for speeders.
Of course they can all they have to do is hold the radar gun with one hand and the wheel with the other
Depends on the manufacturer's specifications.
five years
no
No they do not. There is no state where it is a legal requirement.
It measures the time it takes for the radar pulse to go from the radar gun to your vehicle and back. The pulse is fairly constant so the radar gun is getting updates and by comparing the updates to the time it can determine speed.
No the law even says they do not have to show you the gun what so ever.
Ohio does not require registration of ordinary Title I firearms.
no
Radar Gun