The Traceable Humidity/Temperature Pen continuously and simultaneously displays both relative humidity and temperature readings with dual recall memories. Memory displays highest and lowest humidity and temperature readings achieved overnight or during any time period. Temperature readings range from 32°F to 122°F. Relative humidity display is 2 to 98 percent with the usable range of 25 to 98 percent. The pen is supplied with a 1.5-volt battery.

Control Co., 4455 Rex Road, Friendswood, TX 77546; (281) 482-1714; fax (281) 482-9448;