air velocity and temperature measurements displayed on multi-function lcd up to 2-hour air velocity averaging for measurements all-in-one meter and built-in rotary vane sensor convenient push-button operation full 4-digit display of air velocity in ft/min, m/sec, mph, knots and km/hr °c/°f temperature measurement via built-in thermistor data hold and min/max record/recall functions low battery indication and auto-power off internal memory recalls custom configuration