Aviation's Panel Mount Avionics Installation Leader

Davtron’s Model 655 is a computer-based product that computes density altitude automatically. No longer does the pilot need to retrieve outside air temperature and pressure altitude, then enter this into a flight computer. The Model 655 measures outside air temperature, and accepts pressure altitude information from the blind encoder or encoding altimeter, then converts this information to a direct read-out of density altitude. The density altitude is computed using U.S. standard atmosphere tabulation. Take-off roll, maximum rate of climb, and fuel consumption are all determined easily from density altitude and the aircraft’s flight manual.

  • OUTSIDE AIR TEMPERATURE (°F)
  • OUTSIDE AIR TEMPERATURE (°C)
  • PRESSURE ALTITUDE
  • DENSITY ALTITUDE
  • AIRCRAFT VOLTAGE With ALARM
  • ALTITUDE ALARM

  • Weight: 5 oz.
  • Warranty: 1 year
  • Density altitude: – 10,000 to 30,000 ft.
  • Pressure altitude: – 1,000 to 62,700 ft.
  • (Depends on encoder range.)
  • Flashing annunciator character on incorrect encoder inputs.
  • Voltage range 10V to 32V ± .2 volts Typ.
  • LED with automatic dimming.
  • Input voltage: 14 or 28 volts.
  • Input current: .35 amps max.

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Prop 65 Warning: This product may contain chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.