The Hobo U12-006 4-channel indoor and Hobo U12-008 four-channel outdoor/industrial data loggers accept up to four external sensors for measuring AC current, DC voltage, temperature and carbon dioxide. The models provide 12-bit resolution measurements for detecting greater variability in recorded data, direct USB connections for high-speed data transmissions and a 43K measurement capacity. They also feature rugged enclosures and accept the same range of external sensors and input cables as the company's Hobo H8 loggers.

Onset Computer Corp., 470 MacArthur Blvd., Bourne, MA 02532; (800) 564-4377; fax (508) 759-9100; www.onsetcomp.com.