CO Guardian 353D-101 Panel Mount CO Detector for Dynon SkyView

• Designed for non-certified single and multi-engine piston engine aircraft.
• Dimensions: 3.35 in. L x 2.25 in. W x 1.50 in. H.
• Weight 3.5 oz.
• Input Power 14/28 VDC.
• RS-232 Serial Connection included for reporting on external systems (see list).
• 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 ranges 0 °F to 110 °F.
• Built-in Temperature compensating circuit.
• CO sensor tested up to 15,000 feet.

Approved Dynon PFD/MFD Products that will display the CO Guardian 353D data:

• Dynon SkyView HDX
• Dynon SkyView Touch
• Dynon SkyView Classic
• Dynon SkyView SE

Recommended CO range for Dynon 

• 0-50 Green
• 51-99 Yellow 
• 100+ Red 

View all of our videos on our YouTube video channel.

• Information Sheet on CO Detector Products (PDF)
• 353D User Manual (PDF)
• 353 Family Installation Drawings 
• *Please use 452 installation drawings for dimensions only listed here 

All products come with a 60-day money back guarantee and a one (1) year limited warranty. The warranty will be void if the unit has been opened or tampered with. If you experience any problems with the unit, please call 520-889-1177 or email us at support@guardianavionics.com and we will gladly assist you and have the problem rectified.

WARRANTY COVERAGE

GUARDIAN AVIONICS/CO GUARDIAN LLC. WARRANTS TO THE ORIGINAL CONSUMER PURCHASER,
THAT THIS DETECTOR WILL BE FREE OF DEFECTS IN MATERIAL AND WORKMANSHIP FOR A TO REPLACEMENT OF THE PRODUCT, REPAIR OF THE PRODUCT OR REPLACEMENT OF THE PRODUCT WITH REPAIRED PRODUCT AT THE DISCRETION OF THE MANUFACTURER. THIS WARRANTY IS VOID IF THE PRODUCT HAS BEEN DAMAGED BY ACCIDENT, UNREASONABLE USE, NEGLECT, TAMPERING OR OTHER CAUSES NOT ARISING FROM DEFECTS IN MATERIAL OR WORKMANSHIP. THIS WARRANTY EXTENDS TO THE ORIGINAL CONSUMER PURCHASER OF THE PRODUCT ONLY.

Warranty Disclaimers

Any implied warranties arising out of this sale, including but not limited to the implied warranties of description, merchantability and fitness for a particular purpose, are limited in duration to the above warranty period. In no event shall the Manufacturer be liable for loss of use of this product or for any indirect, special, incidental or consequential damages, or costs, or expenses incurred by the consumer or any other user of this product, whether due to a breach of contract, negligence, strict liability in tort or otherwise. The manufacturer shall have no liability for any personal injury, property damage or any special,
incidental, contingent or consequential damage of any kind resulting from gas leakage, fire or explosion.

Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you. Some states do not allow the exclusion or limitation of consequential or incidental damages, so the above
limitations or exclusions may not apply to you.

Please note that Guardian Avionics is not responsible for loss and/or damages resulting from installation or soldering errors.

Legal Remedies

This warranty gives you specific legal rights and you may also have other rights that vary from state to state.

Warranty Performance

During the above warranty period, your product will be replaced with a comparable product if the defective product is returned, postage prepaid, to Guardian Avionics, Customer Service Department, 1840 E Valencia Rd, Suite 216, Tucson, AZ 85706, together with proof of
purchase date. Please include a note describing the problem when you return the unit. The replacement product will be in warranty for the remainder of the original warranty period or for six months, whichever is longer. Other than the cost of postage, no charge will be made for replacement of the defective product.

Important: Do not attempt to open unit. If unit is opened, warranty will be void.

Your Carbon Monoxide Alarm is not a substitute for property, disability, life or other insurance of any kind. Appropriate insurance coverage is your responsibility. Consult your insurance agent.

Warranty Registration

Your unit is automatically registered for a 1-year limited warranty from date of purchase, provided you retain the proof of purchase (invoice). To ensure that you are informed of the latest updates and news on our products, please fill out the warranty card that comes with the product, and mail it to us at:

CO Guardian LLC dba Guardian Avionics.
1840 E Valencia Rd, Suite 216
Tucson, AZ 85706

Your unit has a Serial Number. Please check that the unit you receive has the same serial number as shown in your invoice.

For Warranty Service

In case you experience any problems with the unit, you may contact our customer service department at 520-889-1177 for assistance. Even if you have purchased the unit from one of our distributors, you can contact us directly at the following address for technical support or in case you have any problems with your unit:

Guardian Avionics
CO Guardian LLC.
1840 E Valencia Rd, Suite 216
Tucson, AZ 85706

Phone 520-889-1177
Fax 520-889-8249
Email support@guardianavionics.com

View our installation examples.

353D installation 

Because of their sensitive nature, all carbon monoxide
(CO) detector sensors require replacement after a period of time to remain accurate. All Guardian Avionics / CO Guardian aviation CO detectors feature a self-test at power on for each flight. If the unit shows a failure of the CO sensor upon power up, you must send the unit to Guardian Avionics for replacement or overhaul. Depending on level of
use, storage environment, and flight environment, most CO sensors have a usable life of 5-7 years. Though our units have a required Time Before Overhaul (TBO) of Seven (7) years from point of installation regardless of self-test results, we recommend sending in your unit for replacement / recalibration every 5 years during your annual maintenance inspection to assure safety and accuracy of your unit.

The procedure for recalibration is as follows:

• Remove component and note full model number and unit serial number.
• Apply for an RMA Number at: https://www.guardianavionics.com/rma-request or call 520-889-1177 (M-F, 8am to 5pm MST) - the RMA number will be emailed back to you.
• Order a recalibration or new replacement at https://www.guardianavionics.com/recalibration.
• Send unit in under RMA number to: Guardian Avionics, Attn: RMA #___, 1840 E Valencia Rd, Suite 216, Tucson, AZ 85706
• Once unit is received by Guardian Avionics, the recalibrated or replaced unit will be shipped within 3-5 business days unless specified. Core charge will be refunded.
• Upon receipt of the recalibrated/replaced unit, a fresh 1 year limited warranty applies and the unit has a fresh 7 year TBO.