Vasthi instruments carbon monoxide (co) analyzer measures ambient co concentration by employing non-dispersive infrared with gas filter correlation method technology.Key features14 meters optical path to perform high reliabilityfive years guarantee on gfc wheelvarious outputs include ethernet and rs232user friendly interface with large screencontinuous system diagnosis with alarmmulti-tasking software allows viewing test variables while operatingtemperature and pressure compensationinternal data logging with 1 min to 365 day multiple averages