Measuring range: rotative velocity laser 2.5 to 99999r/min
Contact 0.5 to 1999r/min
Surface: 0.05-1999.9 m/min
0.2 to 6560ft/min
Laser tach detecting distance: 50 to 600mm
Accuracy: about (0.05 percent n add 1d)
Resolution: 0.01/0.1/1
Memory: max/min/last value
Power supply: 4x1.5V AA (UM-3) battery
Dimensions: 220x75x29mm
Weight (not including probe):174g