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CO-USB-UP CO Detector Alarm
We now offer the CO-USB Carbon Monoxide Alarm that flips the orientation of the LEDs so that panel installations can be better accommodated, while retaining the features of the CO-USB Original. However, it does not have the digital output port.
 
CO-USB-UP provides a brilliant and reliable indication of CO poisoning. Per FAA guidelines, it flashes bright RED at 41 PPM. For reference, see Carbon Monoxide, a Deadly Menace (faa.gov).
 
It features a breakthrough electrochemical sensor that provides excellent anti-interference from other gases.
 
It's part of our commitment to prioritize affordability, ease of use, simplicity, and reliability—all crucial features for enhancing safety in aviation.

CO-USB-UP CO Detector Alarm

SKU: RI-2025-2-COUSB-UP
$34.95Price
Quantity
    • Plugs into any USB port for power / charging
    • Low power consumption (30 milliamperes)
    • 3 year warranty
    • Excellent anti-interference from other gases
    • Temperature compensation; works across -10 to 40C
    • 3 minute warmup to first accurate result
    • 30 second response to first indication
    • 90 second recovery after removal of CO gas
    • Red LED flashes at 41PPM 
    • Digital output via serial data (0 to 1000ppm results @ 9600 baud) (via 5 pin port) (CO-USB Original only)
    • Digital Alarm signal output; provides a logic “1” (5 volts) whenever the red LED is flashing (via 5 pin port) (CO-USB Original only)
    • 8 hour battery life (CO-USB-Battery only)
    • LEDs face up (CO-USB-UP only)
    • 85 db alarm (CO-USB-Battery only)
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To Our Customers

We are in the business of offering innovative aircraft instruments for experimental aircraft flying, and backup / CO instruments for general aviation (non-TSO/non-PMA). The instruments from Radiant Technology are not designed to be used in applications where their failure would endanger safe flight or human life in any way. They are intended solely for use in VFR conditions. They are not certified to meet any Technical Standard Order, and are not produced under a Parts Manufacturing Authority (TSO / PMA). As a result, they are suitable only for use in experimental and ultralight aircraft, and in Light Sport Aircraft, if meeting the requirements of the respective manufacture.

Support

If you need support for your Radiant instrument purchase, please contact us by email at support@radiantinstruments.com. Because of our small staff, we do not have a direct phone number.  We do our best to respond to emails as soon as possible. If you do not hear from us within 48 hours, please try again. You may also try kathy@radiantinstruments.com. Please check our our Warranty Information here.

Shipping Information

Since we offer innovative aircraft instruments, we often introduce new products for sale that are in the final engineering phase. Sometimes an engineering problem emerges in the final phase that delays our production runs. This means that if you are ordering a new product, we could be several weeks out from shipping. We try to keep our product pages up to date with shipping information.

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As of 2025, there are only two of us working Radiant instruments. We manufacture products in batches, and cycles take about a month. It is always best to order now and get on the list. We do charge your card at the time your order is placed.

 

We are now able to offer 2nd day UPS shipping on domestic orders, as well as USPS Ground Advantage. In some cases, we may need to revise you shipping amount, and will notify you by email of that change.

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