Lutron AH-4223 – Vane Anemometer / Humidity / Temperature

Lutron AH-4223 is a handheld device that combines functions of a vane anemometer, humidity meter, and thermometer. It measures air velocity from 0.4 to 30.0 meters per second, as well as in feet per minute, kilometers per hour, miles per hour, and knots. Humidity readings range from 10% to 95% RH, with dew point measurement capability. Temperature measurements can be taken from 0 to 50 degrees Celsius, with the option to display in Celsius or Fahrenheit. The device features a vane probe for accurate anemometer readings, along with functions such as hold and record for maximum and minimum values. It operates using four DC 1.5V batteries (UM-4, AAA).