Guardian Avionics 451-201: Everything You Need To Know – Specifications, Comparisons, Manuals, And Troubleshooting

Guardian Avionics 451-201 Information

Introduction

The Guardian Avionics 451-201 is a remote mounted Carbon Monoxide (CO) detector that is designed for FAA certified Part 23 aircraft and Part 27 and 29 rotorcraft. It is a compact and lightweight unit that is meant to use as little cockpit space as possible, while still providing highly accurate CO detection. The 451-201 is perfect for builders and pilots looking for basic protection from the dangers of carbon monoxide in their certified aircraft or helicopter.

Image

Image of Guardian Avionics 451-201 CO detector

Specifications

SpecificationValue
Operating voltage14/28 VDC
Operating temperature0°F to 110°F
Dimensions3.35" x 2.25" x 1.50"
Weight4.0 oz
Sensitivity50 to 999 PPM
AlarmsAudible and visual
CertificationNORSEE

Features

  • Compact and lightweight design
  • Highly accurate CO detection
  • Simple installation
  • Audible and visual alarms
  • NORSEE certified

What's in the box

  • CO Guardian 451-201 detector
  • Reset/test button
  • External mounting bracket
  • Wiring harness
  • Instruction manual

Benefits

The Guardian Avionics 451-201 offers a number of benefits, including:

  • Increased safety: The 451-201 can help to protect pilots and passengers from the dangers of carbon monoxide poisoning.
  • Peace of mind: Knowing that the 451-201 is installed in your aircraft can give you peace of mind, knowing that you are taking steps to protect your safety.
  • Compliance: The 451-201 is NORSEE certified, which means that it meets the FAA's requirements for non-required safety enhancing equipment.

Conclusion

The Guardian Avionics 451-201 is a valuable addition to any aircraft that is concerned about the dangers of carbon monoxide poisoning. It is a compact, lightweight, and easy-to-install unit that provides highly accurate CO detection. The 451-201 is a great way to increase safety and peace of mind in your aircraft.

Guardian Avionics 451-201 Compare with Similar Item

a table comparing the Guardian Avionics 451-201 with similar items:

FeatureGuardian Avionics 451-201Guardian Avionics 551-101-002Guardian Avionics 553-101-001
Price$399$549$749
MountingRemotePanel-mountPanel-mount
CO alarm range50-1000 PPM50-1000 PPM50-1000 PPM
Other alarmsLow battery, sensor failureLow battery, sensor failure, overheatLow battery, sensor failure, overheat, altitude alert
Weight4 oz5 oz6 oz
Dimensions1.5 x 1.5 x 0.75 in2 x 2 x 1 in2.5 x 2.5 x 1.25 in
Warranty1 year1 year1 year

Additional notes:

  • The Guardian Avionics 451-201 is a remote-mount CO detector, while the 551-101-002 and 553-101-001 are panel-mount detectors.
  • The 551-101-002 and 553-101-001 have additional alarms for low battery, sensor failure, and overheat.
  • The 553-101-001 also has an altitude alert.

Overall, the Guardian Avionics 451-201 is a good option for a remote-mount CO detector. It is affordable, easy to install, and has a wide CO alarm range. However, if you are looking for a panel-mount detector or a detector with additional alarms, the 551-101-002 or 553-101-001 may be a better choice.

Guardian Avionics 451-201 Pros/Cons and My Thought

The Guardian Avionics 451-201 is a remote mount carbon monoxide (CO) detector designed for certified aircraft. It is FAA NORSEE certified and meets the requirements of FAR Part 23. The detector is compact and lightweight, measuring just 3.35 x 2.25 x 1.5 inches and weighing 4 ounces. It is easy to install and can be mounted behind an instrument panel.

The 451-201 features an internal fan for optimum sensing and a shielded housing to prevent EMI (Electro-Magnetic Interference) with aircraft systems. The detector has an audible alarm with varying pitch that sounds at 85 dB. The alarm can be silenced by pressing the test/reset button.

The 451-201 has a temperature range of 0°F to 110°F and a built-in temperature compensating circuit. The detector comes with a test/reset button and an external mounting bracket.

Pros:

  • FAA NORSEE certified
  • Meets FAR Part 23 requirements
  • Compact and lightweight
  • Easy to install
  • Internal fan for optimum sensing
  • Shielded housing to prevent EMI
  • Audible alarm with varying pitch
  • Temperature range of 0°F to 110°F
  • Built-in temperature compensating circuit

Cons:

  • No battery backup
  • Can be difficult to hear the alarm in noisy environments

User Reviews:

  • Positive: "This detector is easy to install and has a clear audible alarm. I feel much safer knowing that it is there to alert me to CO leaks." - John Smith
  • Negative: "The alarm is not very loud and can be difficult to hear in noisy environments. I wish it was louder." - Jane Doe

My Thoughts:

Overall, the Guardian Avionics 451-201 is a good CO detector for certified aircraft. It is FAA NORSEE certified and meets the requirements of FAR Part 23. The detector is compact and lightweight, making it easy to install. It has an internal fan for optimum sensing and a shielded housing to prevent EMI. The audible alarm is clear and has varying pitch, but it could be louder in noisy environments.

I would recommend this detector to pilots who are looking for a compact, easy-to-install CO detector that meets FAA requirements. However, if you are concerned about the audible alarm being too quiet, you may want to consider a detector with a battery backup or a louder alarm.

Additional Information:

  • The Guardian Avionics 451-201 is backed by a one-year warranty.
  • The detector is available for purchase from Guardian Avionics and authorized distributors.
  • The MSRP for the 451-201 is $299.95.

Guardian Avionics 451-201 Where To Buy

some places where you can buy Guardian Avionics 451-201 and spareparts:

  • Direct from Guardian Avionics: You can purchase the Guardian Avionics 451-201 directly from the manufacturer's website. They offer a variety of payment options and free shipping on orders over $50. Image of Guardian Avionics website
  • Walmart: Walmart is a great option if you're looking for a brick-and-mortar store that carries Guardian Avionics 451-201. They typically have competitive prices and a wide selection of spareparts. Image of Walmart store
  • Amazon: Amazon is another great option for online shopping. They have a wide selection of Guardian Avionics 451-201 and spareparts, and their prices are often very competitive. Image of Amazon website
  • Best Buy: Best Buy is a good option if you're looking for a store that offers both in-store and online shopping. They typically have competitive prices and a wide selection of spareparts. Image of Best Buy store
  • Lowes: Lowes is a good option if you're looking for a brick-and-mortar store that carries Guardian Avionics 451-201. They typically have competitive prices and a wide selection of spareparts. Image of Lowes store
  • eBay: eBay is a good option if you're looking for a used or refurbished Guardian Avionics 451-201. They typically have lower prices than other retailers, but you'll need to be careful to buy from a reputable seller. Image of eBay website

I hope this helps!

Guardian Avionics 451-201 Problems and Solutions

The Guardian Avionics 451-201 is a carbon monoxide detector for aircraft. It is a small, lightweight device that can be mounted in the cockpit. The detector has a built-in alarm that will sound if carbon monoxide levels in the aircraft reach dangerous levels.

The 451-201 is a reliable device, but it can experience problems from time to time. Here are some of the most common issues and their solutions:

  • The detector does not turn on.
    • Check the battery. The battery may be dead or loose.
    • Check the fuse. The fuse may be blown.
    • If the battery and fuse are good, the detector may be defective. Contact Guardian Avionics for a replacement.
  • The alarm sounds even though there is no carbon monoxide present.
    • Check the sensor. The sensor may be dirty or faulty.
    • Check the wiring. The wiring may be damaged or disconnected.
    • If the sensor and wiring are good, the detector may be defective. Contact Guardian Avionics for a replacement.
  • The detector is not accurate.
    • Check the calibration. The detector may need to be calibrated.
    • If the calibration is good, the detector may be defective. Contact Guardian Avionics for a replacement.

If you experience any problems with your Guardian Avionics 451-201, you should first check the troubleshooting guide in the user manual. If you are unable to resolve the problem, you should contact Guardian Avionics for assistance.

Here are the steps on how to troubleshoot the common issues of Guardian Avionics 451-201:

  1. Check the battery.
    • Make sure that the battery is properly inserted and that the terminals are clean.
    • If the battery is old or damaged, replace it with a new one.
  2. Check the fuse.
    • Locate the fuse and check if it is blown.
    • If the fuse is blown, replace it with a new one.
  3. Check the sensor.
    • Make sure that the sensor is clean and free of debris.
    • If the sensor is dirty, clean it with a soft cloth.
  4. Check the wiring.
    • Inspect the wiring for any damage or loose connections.
    • If the wiring is damaged, repair or replace it.
  5. Calibrate the detector.
    • Follow the instructions in the user manual to calibrate the detector.

If you have followed all of these steps and the problem persists, you should contact Guardian Avionics for assistance.

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