This new, wireless, hygro-thermometer system is designed for monitoring remote office areas, clean-rooms, greenhouses, storage facilities, and refrigeration units to maintain proper temperature and relative humidity levels, the company says. The base station’s LCD displays local time, indoor temperature, and % rh, plus measurements from up to six remote transmitters. The remote transmitter displays time, temperature, and % rh. The transmitter sends an updated signal every 6 min; the base station updates every minute. Extech Instruments Corp., 285 Bear Hill Rd., Waltham, MA 02451-1064; 781-890-7440; 781-890-7864 (fax); firstname.lastname@example.org (e-mail); www.extech.com (website).