The new AQ200 is a multifunctional, hand-held device for monitoring indoor air quality. The manufacturer claims that the portable tester is highly sensitive and extremely accurate for IAQ applications. The device monitors carbon monoxide and dioxide, ambient temperature, atmospheric air pressure and humidity. The tester also has an LCD display, a two-line display, 8,000 memory points, PC software, wireless communication, a shock-proof housing and more.

E Instruments, 172 Middletown Blvd., Suite B201, Langhorne, PA 19047; (215) 750-1212; fax (215) 750-1399; www.einstrumentsgroup.com.