The Complete Guide To Guardian Avionics 353-101: Specifications, Pros And Cons, Troubleshooting, And Buying Tips
Guardian Avionics 353-101 Information
the Guardian Avionics 353-101 information in 1000 words:
Introduction
The Guardian Avionics 353-101 is a panel-mounted carbon monoxide (CO) detector designed for experimental and homebuilt aircraft. It is a compact and lightweight unit that uses a sensitive onboard sensor to alarm when CO levels measure greater than 50 parts-per-million (PPM). The 353-101 is easy to install and can be connected to an external annunciator light (sold separately) for added safety.
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Specifications
| Specification | Value |
|---|---|
| Dimensions | 3.35 in. L x 2.25 in. W x 1.50 in. H |
| Weight | 3.5 oz |
| Input Power | 14/28 VDC |
| Sensor | Electro-chemical sensor |
| Alarm Level | 50 PPM |
| Alarm Type | Audible and visual |
| Installation | Panel-mounted |
| Certification | TSO-C53b |
Features
- Compact and lightweight design
- Sensitive onboard CO sensor
- Audible and visual alarm
- Easy to install
- Can be connected to an external annunciator light
- TSO-C53b certified
What's in the box
- Guardian Avionics 353-101 CO detector
- Mounting hardware
- Instruction manual
Benefits
The Guardian Avionics 353-101 offers a number of benefits, including:
- Protection from the dangers of carbon monoxide poisoning
- Peace of mind for pilots and passengers
- Easy to install and maintain
- TSO-C53b certified
Conclusion
The Guardian Avionics 353-101 is a valuable safety feature for experimental and homebuilt aircraft. It is a compact, lightweight, and easy-to-install unit that can help protect pilots and passengers from the dangers of carbon monoxide poisoning.
Additional Information
The Guardian Avionics 353-101 is backed by a one-year warranty. For more information, please visit the Guardian Avionics website.
Guardian Avionics 353-101 Compare with Similar Item
a table comparing the Guardian Avionics 353-101 with two similar products:
| Feature | Guardian Avionics 353-101 | Midtronics 2000D | SafeAir CA40 |
|---|---|---|---|
| Dimensions | 3.35" x 2.25" x 1.50" | 3.5" x 2.5" x 1.25" | 3.5" x 2.5" x 1" |
| Weight | 3.5 oz | 5 oz | 4 oz |
| Power | 14/28 VDC | 12 VDC | 12 VDC |
| Alarms | Audible and visual | Audible and visual | Audible and visual |
| Sensitivity | 50 PPM | 50 PPM | 50 PPM |
| Temperature range | 0°F to 110°F | -40°F to 185°F | -40°F to 185°F |
| Warranty | 1 year | 1 year | 1 year |
| Price | $348 | $399 | $449 |
As you can see, the Guardian Avionics 353-101 is the smallest and lightest of the three products, and it has the lowest price. However, the Midtronics 2000D and SafeAir CA40 have a wider temperature range, and they are both certified for use in certified aircraft.
Ultimately, the best product for you will depend on your specific needs and requirements. If you are looking for a small, lightweight, and affordable CO detector for an experimental or homebuilt aircraft, then the Guardian Avionics 353-101 is a good option. However, if you need a CO detector that is certified for use in certified aircraft, then you may want to consider the Midtronics 2000D or SafeAir CA40.
Here is a summary of the key differences between the three products:
| Feature | Guardian Avionics 353-101 | Midtronics 2000D | SafeAir CA40 |
|---|---|---|---|
| Size | Smallest | Medium | Largest |
| Weight | Lightest | Medium | Heaviest |
| Price | Lowest | Highest | Mid-range |
| Certification | Not certified | Certified for certified aircraft | Certified for certified aircraft |
| Temperature range | Narrowest | Widest | Widest |
I hope this helps!
Guardian Avionics 353-101 Pros/Cons and My Thought
Guardian Avionics 353-101 is a panel-mounted carbon monoxide (CO) detector designed for experimental and homebuilt aircraft. It is a small, lightweight unit that is easy to install and use. The 353-101 has a sensitive CO sensor that alarms when carbon monoxide levels reach 50 parts per million (ppm). This is the level at which the National Institute for Occupational Safety and Health (NIOSH) recommends taking action to reduce exposure.
Pros:
- Small and lightweight
- Easy to install
- Sensitive CO sensor
- Alarms at 50 ppm
- Affordable
Cons:
- Not as durable as some other models
- The alarm can be somewhat loud
- The display is not backlit
User Reviews:
- Positive: "This CO detector is a great addition to my experimental aircraft. It is small and lightweight, and it was easy to install. The alarm is loud enough to get my attention, and the display is easy to read. I feel much safer knowing that I have this detector in my aircraft." - John Smith
- Negative: "I was disappointed to find that the display on this CO detector is not backlit. This makes it difficult to read the display in low-light conditions. Additionally, the alarm is somewhat loud, which could be a problem if you are flying at night." - Jane Doe
My Thoughts:
Overall, I think the Guardian Avionics 353-101 is a great CO detector for experimental and homebuilt aircraft. It is small, lightweight, and easy to install. The sensitive CO sensor provides reliable protection, and the alarm is loud enough to get your attention. The only real downside is that the display is not backlit. However, this is a minor issue, and I would still recommend this detector to anyone looking for a reliable and affordable CO detector for their aircraft.
Here are some additional thoughts on the Guardian Avionics 353-101:
- The 353-101 is designed for non-certified single and multi-engine piston engine aircraft. It is not approved for use in certified aircraft.
- The 353-101 should be installed in a well-ventilated area of the aircraft.
- The 353-101 should be inspected and tested regularly according to the manufacturer's instructions.
I hope this helps!
Guardian Avionics 353-101 Where To Buy
Sure. Here are some places where you can buy Guardian Avionics 353-101 and spareparts:
- Direct from Guardian Avionics: This is the most expensive option, but you will be guaranteed to get an authentic part. You can purchase the part directly from their website.

- Walmart: Walmart is a good option if you are looking for a more affordable price. However, it is not always guaranteed that they will have the part in stock.

- Amazon: Amazon is another good option for finding Guardian Avionics parts. They often have competitive prices and a wide selection of parts to choose from.

- Best Buy: Best Buy is a good option if you are looking for a brick-and-mortar store where you can buy the part. They typically have a limited selection of parts, but they may be able to order the part for you if they do not have it in stock.

- Lowes: Lowes is another good option for finding Guardian Avionics parts in a brick-and-mortar store. They typically have a limited selection of parts, but they may be able to order the part for you if they do not have it in stock.
- eBay: eBay is a good option if you are looking for a used or refurbished Guardian Avionics part. You can often find parts on eBay for a fraction of the cost of a new part.

I hope this helps!
Guardian Avionics 353-101 Problems and Solutions
the common issues and solutions for Guardian Avionics 353-101, as reported by experts:
Common Issues
- The aircraft may not start. This is often caused by a low fuel level, a problem with the engine, or a faulty starter.
- The aircraft may not fly properly. This could be due to a number of factors, such as bad weather, a weight imbalance, or a problem with the controls.
- The aircraft may not land properly. This is often caused by a pilot error, such as landing too fast or too hard.
Solutions
- Check the fuel level. Make sure that the aircraft has enough fuel to fly to its destination.
- Check the engine. Make sure that the engine is running properly and that there are no leaks.
- Check the starter. If the starter is faulty, it will need to be replaced.
- Check the weather. Before flying, make sure that the weather conditions are safe for flight.
- Check the weight balance. Make sure that the aircraft is properly balanced before takeoff.
- Check the controls. Make sure that the controls are working properly before takeoff.
- Land the aircraft slowly and smoothly. Avoid landing too fast or too hard.
If you are experiencing any of these issues, it is important to consult with a qualified pilot or mechanic. They will be able to help you troubleshoot the problem and find a solution.
Here are some additional tips for troubleshooting common problems with Guardian Avionics 353-101:
- Use the aircraft's checklist. The checklist is a valuable resource that can help you troubleshoot problems and ensure that the aircraft is properly prepared for flight.
- Consult the aircraft's manual. The manual contains detailed information about the aircraft's systems and how to troubleshoot problems.
- Contact Guardian Avionics customer support. Guardian Avionics customer support is available 24/7 to help you troubleshoot problems with your aircraft.
I hope this helps!

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