Gralab 450R Enlarging Timer

Counts down with digital accuracy and resets automatically, allowing you to repeat cycle. Choice of two time ranges: seconds (from 99 sec.) and tenths (from 9.9 sec.). Also has three audio settings, a 600w AC outlet, accepts Gra Lab 560 footswitch. Measures 3 1/2 x 4 x 8". UL and CSA listed.