Tachometer DT-2858 is applicable to the product departments of motor, fan, paper-product, plastics, chemical fiber, washing-machine, automobile airplane, steamer etc.

Measuring range:
Rotative velocity:
2.5~99999r/min (Laser)
0.5~1999r/min(Touch)
Surface: 0.05-1999.9 m/min, 0.2~6560ft/min
Laser tach detecting distance: 50~600mm
Accuracy: +/-(0.05%n+1d)
Resolution: 0.01/0.1/1
Memory: max/min/last value
Power supply: 4x1.5V AA (UM-3) battery
Battery indicator: low battery indicator
Dimensions: 220x75x29mm (8.7x2.96x1.15 inch)
Weight (not including probe):174g / 0.38lb