The Fluke 922 Airflow Monitor features a high-brightness display and a durable holster and wrist strap that allows you to use it in harsh environments. Its colored hoses help you track the source of your readings. Simple and intuitive interface that measures air pressure, flow rate and flow at the touch of a button for ease of use. Powerful air flow detector that measures differential pressure, static pressure, air velocity and flow Convenient colored hoses help to correctly identify pressure readings Simple to use without sacrificing performance Bright backlit display ensures clear display in any environment Customize duct shapes and sizes to maximize air flow accuracy Air flow detector resolution to 0.001 (H2O) 99 data samples can be stored and recalled It can display the maximum/minimum/average/hold data, which is convenient for users to perform data analysis Auto power off function to extend battery life