Digital Motor Speed Meter Tachometer DT-2234C+\n\nFeatures: \n1.This is a non-contact handheld digital photo tachometer with stable performance.\n2.Wide measuring range from 2.5RPM to 99999 RPM and high resolution of 0.1RPM or 1RPM.  \n3.High sampling frequency, clear LCD display, high measuring accuracy.\n4.This tachometer can automatically record the max value, min value and last value.\n5.With auto range, low battery indication and other functions.\n6.Wide used in the field of motor, wheels, lathe, electrical fan, paper making, plastic industry, washing machines, car making, etc.\n \nSpecification: \nModel: DT-2234C+\nMaterial: ABS Plastic\nDisplay: 5-digit 18mm(0.7\"") LCD Display\nMeasuring Range: 2.5RPM - 99,999RPM\nResolution: 0.1RPM at 2.5-999.9RPM, 1RPM at 1000-99,999RPM\nAccuracy: \u00B1(0.05%+1 digit)\nMeasuring Distance: 50-500mm / 2-20in\nTime Base: 6MHz Quartz Crystal Oscillator\nRange Selection: Auto range\nSampling Time: 0.8s(over 60RPM)  \nPower Su)