This digital timer is perfect for darkroom use. It has a large display and can stand, hang, clip or use the magnet. It’s easy to use. Pushing both minute and second tabs at the same time zeroes the display. Push either minute or seconds to set the timer and then start or stop. It has a loud beeping alarm.
It runs on one AAA battery, which is not included.
The Brownie Camera Guy says:
I have used these types of digital timers for about the past 10 years or so. I usually have 2 or 3 going at once when processing.