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Aviation's Panel Mount Avionics Installation Leader

The AERO 553-101-001 Multi-Function Carbon Monoxide (CO) detector is a panel mounted TSO Certified unit designed especially for use in both FAA certified aircraft and experimental aircraft. Designed to fit in, and replace a standard 2.25” (2 1/4”) standard instrument panel clock, the AERO 553 gives you a full set of clock, timer, temperature, cabin and density altitude functions along with highly accurate and extremely fast CO detection and PPM readings within the cockpit on an easy-to-read LCD display.

  • Carbon Monoxide Detection: The AERO 553 will detect and display true CO levels from 30ppm to 999ppm for real-time tracking of Carbon Monoxide in the cockpit. The 553 will alarm if the CO level exceeds 50-70 ppm for more than 5 minutes or will provide an instant alarm if CO spikes above 300ppm within one minute.
  • Clock Function: Displays Local Time and Zulu Time in a 24 hour format.
  • Flight Timer: Flight Timer starts automatically on take off when 150 ft above runway level. It can also be started manually.
  • Stop Watch: Stop watch function allows you to time any segment of your flight.
  • Inside / Outside Air Temp: Keeps track of inside and outside air temperature in both Fahrenheit and Celsius. (Requires AERO 553-500 OAT Probe)
  • Battery Voltage: Receive an instant alert when battery voltage drops / rises above pre-set levels for 14 / 28 V systems.
  • Cabin Altitude: Monitors cabin altitude and sounds an alert when you climb above 10,000 ft , 12,500 ft, and above 14,000 ft. This alert provides the pilot a reminder to equip supplemental oxygen as required.
  • Density Altitude: The density altitude is indicated based on the absolute pressure and OAT. (Requires AERO 553-500 OAT Probe)
  • RS-232 Output: Indications/Alerts may be configured to display on select 3rd party avionics products (contact Guardian Avionics for updated list)
  • Remote Annunciator Light: A Remote Annunciator Light may be installed and connected for CO alert and Altitude alert in a visible position when the AERO 553 is mounted out of plain sight.

  • TSO Certified and designed for certified single and multi-engine piston engine aircraft
  • Dimensions: 2.25"W x 2.25"H x 2.5"D
  • Weight 7.5 oz
  • Input Power: 9-30 VDC - Power usage less than 2 watts
  • Circuit breaker: 2 amps
  • RS-232 Serial Connection included for reporting on external systems
  • Internal fan for optimum sensing
  • Shielded to prevent EMI (Electro-Magnetic Interference) with aircraft systems
  • Audible alarm with varying pitch at 85 dB
  • LED Red and Amber CO Alert lights. LED Green nominal indication light
  • Temperature range: 0 °F to 110 °F
  • Humidity: 5% to 95% (non-condensating)
  • Built-in Temperature compensating circuit
  • CO sensor tested up to 25,000 feet.
  • 15-pin connector with RS-232 output available.

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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.