RADIANT Technology has introduced the CO-USB Carbon Monoxide Alarm, which flashes bright red at 41 PPM.
According to company officials, it can be powered up from any USB port, even an Android or late-model iPhone (15 or later).
It also includes a serial port for OEM integration. It can be programmed to any alarm value and offers continuous output of CO value via the serial line.
Other features include:
- Low power consumption (30 milliamperes)
- Anti-interference from other gases
- Temperature compensation; works across -10°C to 40°C
- Digital output via serial data (0 to 1000ppm results @ 9600 baud) (via 5 pin port)
- 3 minute warmup to first accurate result
- 30 second response to first indication
- 30 second recovery after removal of CO gas
- Red LED flashes at 41 PPM (any level may be set for OEM integration via 5 pin port)
- Digital alarm signal output; provides a logic “1” (5 volts) whenever the red LED is blinking.
Priced at $24, it comes with a five-year warranty. First shipments are expected in late April 2025, company officials said, noting that price may change without notice subject to tariffs.
For more information: RADIANTinstruments.com
A brief video is available that shows a demonstration of the product:
This sounds great. What is mechanism of detection, like MOS sensor, or electrochemical or other methods (PAS, NDIR: sensor would not look like this). Since CO even below 40ppm can affect chronic illnesses, would be even more useful if this gave yellow light for example for 20-40ppm, and even better, give digital readout to 10 ppmv or lower to cell phone and cloud for long term tracking. Also, is mA used reading based on a 5VDC source like USB or based on other voltage? Total power requirement in Watts also would be useful. Many are seek lower alarm limits to 30ppm or less since even below 10 ppm, CO may affect Chronic health. See for example recent petition to US Consumer products safety commission: https://earthjustice.org/wp-content/uploads/2024/12/2024.12.17-cpsc-co-alarm-petition-final-filing-version.pdf
$24.00 is a great price for this. Refreshing price especially when used in the aviation world but alas, no TSO and is to be used only for ultralight, light sport and experimental aircraft under VFR conditions per the manufacturer.
The $24.00 price is valid through April 7 with no indication as to what the price will be thereafter. That April 7 date makes me wonder if this thing is made in China which will subject it to one of many tariffs going into effect at that date.
That being said, I appreciate the engineering that went into the unit.
Do you get a refund if the price go up before you ship it?