ROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-502T Silent & Audible ConuntDown TimerROBIC SC-848W 300 Memory Speed StopwatchROBIC SC-848W 300 Memory Speed StopwatchPowerful and precise...analyzes performance in several ways.EL Backlight illuminates entire display.300 Dual Split Memory recall.1/100 second precision to 100 hours.User selectable Running Lap or Split Time.Automatic Lap Counter to 999.Stroke Rate Calculator displays strokes per minute.Speed Timer in mph/kph.300 memory recall of lap speed, time and number.Advanced Countdown Timers show time remaining.Water Resistant to 30 meters.Break-Away Safety Lanyard helps prevent accidents, promotes safe use.