Three-channel darkroom timer for enlarging, developing, and processing. Runs three independent countdowns at once or one at a time, each with its own audible signal. Also works as a 24 hour clock and a stopwatch accurate to 1/100 second. Non-illuminated display for darkroom safety. Magnetic back for easy mounting.

• Three independent countdown timers up to 20 hours
• Three distinct audible signals
• 24 hour clock and 1/100s stopwatch
• Magnetic mount, non-illuminated display
• AAA battery included