Part# 10-03188
MFR Model# 75-15


The AERO 353 has a built-in state-of-the art CO sensor that immediately reacts to the presence of CO. It was designed for pilots who want the unit to be small and remote mountable. The unit provides pilots a peace of mind.

Detector will go into alarm mode within five minutes if CO level is greater than 50 PPM.

The unit has dual light LED alarm; Amber less than 99 PPM and Red 100 PPM and above. Very simple installation (2-4 hours); and a remote light can also be installed.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


  • Internal Fan for optimum sensing
  • Designed for all Piston (Single and Twin Engine Aircraft)
  • Shielded to prevent EMI (Electro-Magnetic Interference) with Aircraft systems
  • Audible alarm with varying pitch at 85DB
  • Front panel lighting (Green and Red) Panel mounted unit
  • CO Sensor tested up to 15,000 feet
  • Temperature ranges 0 F to 110 F
  • Built in Temperature compensating circuit
  • 1 year Limited Warranty
  • 60-day money-back guarantee
  • AERO 353 is designed to facilitate connection to an external annunciator lamp. This gives an added level of protection if the detector is not within the pilot view.
  • The annunciator lamp is to be purchased separately. Please see all products section at this web site to order an external lamp.
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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: What is the difference between the 353-101 (AS Part 13-16423) and the 353-201 (AS Part # 10-03188)?

The 13-16423 is designed to mounted in a panel and has an annunciatior and test panel built in. The 10-03188 is a remote unit and requires a separate annunciatior panel for tighter installations.

Q: What are the dimensions of the 353P-201? The CO Guardian website says 3.35” L x 2.25” W x 1.50” H, but the manual says 3.75” L x 1.50” W x 1.20” H.

Length: 3.78 X height: 1.24 X width: 1.6
O.D(mounting flange: 2.25 / square face: 1.25xx 1.6 / Face height: 1.5
4oz weight

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