The HHAQ-107 meter (photo) makes general measurements of mixed-gas volatile-organic-compound (VOC) levels as part of an indoor air quality (IAQ) maintenance program. The HHAQ-107’s metal-oxide semi-conductor sensor can detect ammonia, toluene, ethanol, hydrogen sulfide (H2S) and cigarette smoke. Features of this handheld device include 32,000 data-logging points, included data-logging software and an adjustable audible alarm to notify of high VOC concentration. — Omega Engineering Inc., Stamford, Conn.
A handheld VOC meter for indoor air-quality maintenance
| By Chemical Engineering