The DM-535 Handheld Thermo-Hygrometer provides simultaneous display of relative humidity, temperature, dew point and absolute humidity. The device is equipped with a humidity and temperature transmitter that provides an RS-232 signal to the handheld display. The RS-232 digital signal format allows the simultaneous display of four measurements on a two-line LCD without the need for a display selector switch. Transmitters are available for English or Metric units. The DM-535 is portable and is powered off a single nine-volt battery.

Rense Instruments Division, 11 Old Sugar Hollow Road, Danbury, CT 06810; (203) 792-8686; fax (203) 743-2051; www.renseinstruments.com.

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