Paterson Darkroom Triple Timer ~ Excellent Tool!

A battery operated timer that can be used as a clock, stop-watch or a three stage timer. The three countdown stages can be run simultaneously or as separately switched timers each counting up again after reaching zero.

The timer gives audible signals at the end of each time period.
Times can be set up to 20 hours.
Stop-Watch measures to 1/100 second.
12 or 24 hour clock display
AAA Battery included