Chronometer, LED - 14 Volt
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The Davtron M877 Digital Clock

Greenwich Mean Time
Local Time
Flight Time
Flight Time Alarm
Elapsed Time
Count Up,Count Down, Alarm


  • Two button control system is natural and error free. Setting operations are identical for both alarm and time setting. Patent pending.
  • Bright sunlight readable incandescent displays
  • Illuminated buttons and annunciators for night viewing
  • Flight Time recorded in hours and minutes or in hours, tenths and hundredths
  • Serial time data output for remote use
  • Flight Time Alarm with external output
  • Elapsed Time count down timer with alarm
  • A 4 Megahertz crystal precision time reference


  • Greenwich Mean Time: 24 hour format
  • Local Time: 12 hour format, 24 hour option
  • Flight Time: Records in 99:59 standard, 99:99 hour option
  • Elapsed Time Count Up: Starts in minutes, seconds, then hours, minutes up to 99:59 hours
  • Elapsed Time Count Down: Settable from one second to 59 minutes, 59 seconds
  • Elapsed Time Alarm: Activates at zero when counting down
  • Incandescent Displays: Readable in sunlight
  • Automatic Dimming
  • Battery Type: AA alkaline
  • Polarizing Filter
  • Keep Alive Current: 0.00004 Amps
  • Input Current: 0.2 Amps
  • Input Voltage: 28V (14V or 5V backlight available)
  • Crystal Reference: -40C to +60C .001%
  • Weight: 5 ounces
  • Warranty: 1 year
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