Written by HVAC Professionals for HVAC Professionals

Seitron Personal CO Gas Monitor

National Comfort Institute (NCI) instructors are now using the Seitron PM1C Be Safe CO Monitor for monitoring ambient carbon monoxide (CO) levels.

I tested the alarms on this instrument, which are loud and annoying. However, you won’t mistake where the sound comes from. It leads to faster technician response time when CO is detected.

The monitor notifies the end-user of a hazardous condition that starts at nine ppm with an audible alarm. Its display screen enables the end-user to see how high the level of CO is getting in the ambient air.

There are two alarm levels: low and high. The low level alarm will beep once per second at nine ppm and the high level will beep two times per second at 35 ppm.

At the same time, red LED lights flash on three sides of the monitor with the alarm. This monitor is also equipped with a crocodile clip that you can secure to a belt or tool bag, allowing the technician to carry it at all times.

This CO monitor’s sensor range is between zero and 300 ppm, has a self-test function, and offers event-logging download capabilities.

The listed life expectancy is two years, and then it needs to be replaced, which is not a problem because of its low price: just slightly more than $100. The last feature is a provided sensor attachment that can take a direct sampling.

The Seitron PM1C Be Safe CO Monitor will be the next go-to personal CO monitor for the trained HVAC professional.

For more information, visit the Seitron website here. You can also download its quick guide here.

— By Casey Contreras, National Comfort Institute, Inc. Instructor