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The Gralab Model 450 is a single memory switching timer. It offers simple operations and adjustable, highly visible, 2-digit LED display.
It has easily adjustable membrane controls for display brightness, two countdown time ranges - seconds to 99 and tenths of seconds to 9.9, three audio signal choices - off, metronome and end-of-cycle tone, and AC outlet power "on" or timer controlled operation selection.
Temperature range from 0-55C, Humidity range from 0-95% non-condensing
In the Box
GraLab Model 450R Electronic Timer
Table of Contents
Choice of two ranges: 1-99 in secs.; .1-9.9 in tenths of secs.
Maximum Wattage (Load)
Maximum Resistive Load
Number of Outlets
Three; End of cycle tone, once every second, or none at all
Two adjustable LEDs (for brightness, or can be switched off completely)