• 12 or 24 hour clock operation
• Stopwatch/Chronograph mode with 1/100sec resolution
• Programmable alarm with an hourly chime
• Calendar displays day, month, and date

The Extech 365510-NIST is a digital stopwatch and clock. This sporty, yellow stopwatch has a water-resistant housing, accumulated elapsed time and split time measurements and two competitors monitoring. The stopwatch/ clock also features a wake/snooze alarm function. Complete with 39" (1m) neck strap and battery. Includes certificate traceable to NIST.