VANE ANEMOMETER/HUMIDITY/TEMPERATURE Model : AH-4223 * Air velocity : 0.4 to 30.0 m/s, ft/min., km/h, mile/h, knots. * Humidity : 10% to 95% RH, Dew. * Temperature : 0 to 50 °C, °C/°F. * All in one, hand held type. * Vane probe for anemometer. * Hold, Record ( max., min. ). * DC 1.5V battery ( UM-4, AAA ) x 4.
