LUTRON ABH-4224

* Air velocity : 0.9 to 35.0 m/s, ft/min., km/h, mile/h, knots. 
* Barometer : 10 to 1100 hPa, mmHg, inHg. 
* Humidity : 10% to 95% RH, Dew. 
* Temperature : 0 to 50 oC, oC/ oF. 
* All in one, hand held type. 
* Cup type probe, no wind direction. 
* Hold, Record (max., min.). 
* DC 1.5V battery (UM-4, AAA) x 4.