Digital CO Detector

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Part# 12-01895
MFR Model# DCO1001


The battery operated DCO 1001 features a new electromechanical CO sensor with 3 points of auto calibration: 0, 100 and 500 ppm. The meter has a Backlit LCD Display and simultaneously exhibits Dual Readings of CO and Max Hold, updated every second. Other features include High Repeatability, Auto Zero, Adjustable Alarm Settings, and an Audible Alert which triggers above 35ppm to indicate a dangerous CO concentration.

The extremely affordable DCO 1001 has a measuring range of 0-1000 ppm and comes complete with a soft case, a wrist strap, 3 AAA batteries and an instruction manual.

California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


  • Adjustable co warning level
  • LCD dual digital display
  • Bright backlight self test
  • Low battery indication
  • F/C selectable
  • Auto power off
  • Auto zero
  • Co range: 0~999ppm
  • Resolution: 1ppm
  • Battery life is 250 hours when the backlight is off and 35 hours with the backlight on.


  • Measurement Range: 0 to 999ppm
  • Resolution: 1ppm
  • Accuracy: 20% from 0 to 100ppm;15% from 100 to 500 ppm
  • Battery Life: 250 hours with the backlight off;and 35 hours with the backlight on
  • Dimensions:7 x 1.7 x 1.1 in. (178 x 43 x 28mm)
  • Weight: 4 oz. (113g)
  • Power Source: 3 'AAA' batteries (included)

In The Box

  • Digital CO Detector
  • Wrist strap
  • Carrying pouch
  • Batteries
  • User's manual


This product is not good for me. I wanted a CO detector that would protect me and students. It shuts off every 15 minutes and it is ridiculous to have to keep turning it back on in flight. It is useless to me as a CFI.

Henry B Verified Purchase


March 25, 2024


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Does this detector have to be re-calibrated occassionally? If so, how often, what's the procedure and how much does it cost? Regarding Part No. 12-01895

Per the manufacturer, they do not calibrate this instrument. They said it is not needed. Customer can calibrate if they want, but it is not necessary.

Q: Please explain the auto off feature on this Digital CO Detector. If I want to monitor CO levels in the cockpit, what keeps it from turning itself off?

Per the supplier: The Automatic Power Off is a built in feature and unfortunately it cannot be manually turned off. Our CO detector is not meant to be used as a monitor. In order to be used as a monitor, the unit needs to have consistent power supply. When power supply level drops, the value being detected will no longer be accurate. Our CO detector is designed as a handheld device and is operated by a battery, not a consistent AC power. Therefore we need to build in this APO to preserve battery life and ensure accurate readings.

Q: How long will this unit stay on before auto power-off? If it turns off after 30 minutes and Im on a 3-hr flight, this is pretty useless for pilots.

Auto power off: After 15 minutes of inactivity.

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