Shot timers

[radshooter]

Been thinking it is about time to add a shot timer to the range bag and was wondering what y'all use. This would just be for myself and wife to use, no matches or club shoots.

What features do you like about yours? Where did you get it? Is it sensitive enough for dry-fire practice?

All of the decent ones I have looked at seem to be in the same ballpark price-wise, so I would appreciate some help deciding which one.

Thanks.