SPER Scientific Timers Certified Visual

SPER Scientific Timer, Visual Alarm, 3 X 2 X 5/8 In, 99 Minutes 59 Seconds Range, 1 Second Resolution, Red, 1 Count Down Channel, 2 Oz Weight, With Two Aaa Batteries, Nist Traceable Certified, Memory Recalls The Last Timer Setting For Reuse, Select Either A Bright Flashing Yellow Led Visual Alarm Or An Audible Alarm, Used By Testing Organizations, Law School Admissions Council, Has Built-In Stand For Bench Top Use, Pocket Clip And Magnetic Back - SPER