SPER Scientific Timers Continuous Alarm

SPER Scientific Timer, Alarm, 3 X 2 X 5/8 In, 9999 Minutes Range, 1 Minute/1 Second Resolution, Red, 1 Count Up And 1 Count Down Channel, 2 Oz Weight, Continuous, With Two Aaa Batteries, Memory Recalls The Last Timer Setting For Reuse, Select Either A Bright Flashing Yellow Led Visual Alarm Or An Audible Alarm, Has Built-In Stand For Bench Top Use, Pocket Clip And Magnetic Back - SPER