A simple digital countdown timer, but never under estimate their usefulness... as they say information is power.

I use one of these religiously in every match, never second guess how much longer you have left in a match. 

This timer can be set for minutes and seconds, simple to use and has a number of mounting options, from a simple stand that flicks out to sit on the bench or use the magnetic strip to attach it to a metallic (ferrous) part of your stand.

Runs on a  simple AAA battery.

NOTE: Battery not included.