Special Features:

General features-has hold/alternate selector for measurement; function selector for 6 measurement types plus battery status; digital display 4 1/2 innch lcd controlled by microprocessor with polarity, low battery, decimal points, engineering units and special function indications; display hold to hold current display; min/max switch for displaying min/max readings; symbol change switch; average switch; case is molded impact resistant abs, is water resistant, has integral stand for bench use or wall mounting; 14 engineering units displayed-pressure in psi, inches h2o, bar and pascal, airspeed in m/sec or ft/min; temp and dewpoint in degrees c or f; battery 9 volt alkaline size pp3; battery life 12 to 25 hrs continuous use; weight 19.3 oz w/battery; usage conditions 0 to 50 degrees c; high accuracy

Properties:

An instrument for measuring and indicating by digital display relative humidity and temperature of the surrounding atmosphere. Measurements are made by sensors generally mounted in a probe.