Handheld chronograph??

[KTS KinG]

is there any way of checking this is working without actually shootin paint through it?

 

[Skeet]

Flick something over teh top of it..liek a whippy ruler or similar...depends what the minimum speed is...got a BB gun?

 

[KTS KinG]

depends what the minimum speed is...

can you change the settings or something?theres only one button...... il try the thing with the ruler