* 30-130 db, auto range, manual range.
* frequency and time weighting, iec 61672 class 2.
* a or c frequency weighting.
* fast/slow time weighting, peak hold.
* data hold, record(max., min.).
* ac output, rs232 computer interface.
* data logger.
* type k thermometer : -100 to 1300 oc, oc/of.
* type j thermometer : -100 to 1200 oc, oc/of.
* optional probe(em-900p)for humidity/temp., light and anemometer measurement.
* dc 1.5v battery(um-4, aaa)x 6 or dc 9v adapter in.
* patened.