GraLab Model 655 Electronic Digital Timer

The Gra-Lab Model 655 Electronic Digital Timer has a "touch-type" dust and moisture resistant keypad, that protects it in lab and darkroom conditions.

Use the Model 655's two memories independently or program them to interact with each other. Two time settings can cycle at the same time or in sequence.

It also has an instantly repeatable time cycle. Digital timing circuits cycle off a quartz crystal time base with little reaction to power line interference and none to frequency variations.

This model has extensive timing capacity ranging from a tenth of a second timing up to 59 minutes, 59.9 seconds with automatic reset; repeat a cycle over and over by pushing a single button.

Half-inch high, red LED's display minutes, seconds and tenths. Adjust brightness from "high" to "off". The 655 can count down or up to give you a stop clock feature and elapsed times.

The two outlets can be set to cycle on or off-time, under timer control or turned on or off independently of the timed switch.

Compact and lightweight, The Gralab 645 at 2.25 x 4.5 x 9.25", can be positioned at a 20-25 degree angle on its own stand, sit on rubber pads which provide traction on flat surfaces, or wall mounted using keyhole slots on its underside.

This model features a permanent plastic boot over the power and outlet control switches to prevent contamination or corrosion.