GD-40 CO Detector

The Right Features at the Right Price

GD-40 $299 Free Shipping

GD-40 $299 Free Shipping

LED Indicator and Button Included

LED Indicator and Button Included


  • Communicates Digitally with your EFIS

  • Monitors Cabin Pressure - Aural Alerts to remind you to don your Oxygen Mask

  • Calibrated Using Precision Gas - Each unit is individually calibrated and tested

  • Built in Self Test Monitors Sensor Quality - Continuous self testing for reliability

  • Altitude and Temperature Compensated - Has an internal Altimeter and Temperature Sensor

  • Remote Mounting Takes No Panel Space

  • Detects CO as low as 10 PPM

  • Calibrated up to 25,000'

  • Circulation Fan for Superior Performance

  • Sensor Lasts up to Ten Years Before Requiring Recalibration

Four Ways to Alert:

  • Digitally through your EFIS

    • AFS

    • Dynon - via switched input

    • GRT

    • GARMIN

    • MGL

  • Aurally through your Audio System: "Danger Carbon Monoxide"

  • Via a Two Color LED

  • Via a switched relay to a Lamp, EFIS input or Tone Generator

Three Alert Levels:

  • Low: 50 to 100 PPM - Flashing green LED, Voice Alert: "Caution, Carbon Monoxide"

  • Medium: 100 to 400 PPM - Steady Red LED, Voice Alert: "Warning, Carbon Monoxide"

  • High: More than 400 PPM - Flashing Red LED, Voice Alert: "Danger, Carbon Monoxide"

Q and A:

Q: Why should I choose the GD-40 over an automotive/household CO detector?
A:The GD-40 is altitude and temperature compensated for an aircraft environment and will sense accurately at all altitudes and temperatures, non-aviation detectors are not.  Secondly, The GD-40 monitors the integrity of its CO sensor throughout the lifetime of the sensor (up to 10 years) and will alert you when it is time for a new sensor and recalibration.

Displays CO Warnings on your EFIS

Dynon Skyview

Dynon Skyview

Advanced Flight Systems

Grand Rapids Technologies

Grand Rapids Technologies

MGL Avionics

MGL Avionics

Garmin G3X

Garmin G3X