H-B DURAC Single-Channel Electronic Timer with Triple Alarms and Certificate of Calibration, SP SCIENCEWARE

Choice of vibration, sound, or light alarms makes this timer perfect for high noise locations.

It has a switchable timing capacity or 19 hours: 59 minutes or 99 minutes: 59 seconds, counts up or down, remembers the last time set, and displays the elapsed time after countdown. Vibration, light and loud buzzer alarms can function at one time, or be independently turned off. A key press confirmation feature gives an audible indication of data entry. Lay flat on a bench, use the flip-open stand for a vertical view, carry it on a lab coat with the convenient pocket clip, or use the magnetic back for metal surface attachment. Requires two AAA batteries (included).