Features :
Display : Large 5 digit, 18mm LCD.
Test select : Automatic.
Range : 2.5 to 99,999 RPM
Resolution : 0.1 RPM (from 2.5 to 999.9 RPM) 1 RPM (over 1,000 RPM)
Accuracy : +/-( 0.05% +1 digit)
Distance : 50 to 500mm/ 2 to 20 inch
Memory : Last Value. Max Value. Min RPM
Powered by 1 x Battery 9V (Including for you)
Size : 130x70x29mm
Weight : About 160g