Large clear digital display, times up or down in 1 second increments. Maximum time 99 mins 59 seconds. Integral stand and magnet mount, on/off switch. Requires 1 x AAA battery.

Class set (30 timers) supplied in a Gratnells tray with lid and foam insert. 

Specification: Timer size 100 x 150 x 21mm. Display 75 x 53mm.