Air Flow Capture Hood, Maximum Air Flow Measurement 500 cfm, Minimum Air Flow Measurement 10 cfm, Overall Height 34 1/2 in, Base Diameter 13.3 in, Differential Pressure Not Applicable, Hood Opening Length 2 ft, Hood Opening Width 2 ft, Includes 2 x 2 Hood, and Case, Base, Handles, Display Type Digital, Maximum Temperature Measured Not Applicable, Minimum Temperature Measured Not Applicable, Bluetooth Compatible No, Batteries Included Yes, Battery Chemistry Alkaline, Battery Run Time 10 hr