Measuring range: rotative velocity laser: 2.5-99999r/min; Contact 0.5-1999r/min Accuracy: +/-(0.05%n+1d)

Application: applicable to the product departments of motor, fan, paper-product, chemical fiber, washing-machine, automobile, airplane, steamer etc.Measuring range: rotative velocity laser: 2.5-99999r/min; Contact 0.5-1999r/minSurface: 0.05-1999.9 m/min; 0.2-6560ft/minLaser tacho detecting distance: 50-600mmAccuracy: ±(0.05%n+1d)Resolution: 0.01/0.1/1Memory: max/min/last valuePower supply: 4x1.5V AA (UM-3) batteryBattery indicator: low battery indicatorDimensions: 220x75x29mmWeight (not including probe):174g