The Extech 365510 is a water-resistant digital stopwatch/clock with split time, two competitor monitoring, alarm and clock features. The accuracy of the clock is ±3 seconds per 24 hours. Careful use of this stopwatch will provide years of reliable service.

Features:

• NIST Certificate of Calibration
• Sporty colorful yellow stopwatch with large LCD
• Stopwatch counts up to 23 hours 59 min, 59 seconds accurate to ±3 seconds/day
• Accumulated elapsed time and split time measurements
• Accurately times a two person competition
• 12 or 24 hour clock operation with settable hour chime
• Wake and snooze alarm
• Dimensions/Weight: 2.3x2.8x0.5” (57x70x15mm); 0.11 lbs (50g)
• Water resistant housing is complete with 39" (1m) neck-strap and battery