Features:
Powerful meter provides differential and static pressure, air velocity and flow readings
Convenient colored hoses help proper interpretation of pressure readings
Easy to use without sacrificing performance
Bright, backlit display for clear viewing in all environments 
User-defined duct shape and size for maximum airflow accuracy
Resolution down to 0.001 in H2O
99 point data storage capacity
Min/Max/Average/Hold functions for easy data analysis
Auto power off saves battery life