Features:-Large LCD displaying-Wide measuring range & high resolution. The use of durable.-Digital display gives exact RPM with on guessing or errors. It is a great tool to measure-In wood and metal working it can be used to accurately measure the speed of a lathe.-The RPM of motors and machine parts.-The housing has been carefully shaped to fit comfortably in either hand.-The last value/min . value will be automatically stored in memory and can be displayed by turn anytime.-Wide measurement range, high resolution-Large screen display, clear reading.-Light Weight and hard shell ABS plastic, nice shape, easy to use.Specifications: Battery volt: 9VOutput: less than 1mwMaterial:Hard shell ABS plasticMirror Length:L50 x W25mmBattery length:L44 x W25 x D16mmItem Type:Non Contact RPM Laser Photo TachometerNet Size:L130 x W65mmScan Diameter:17mmPackage Size: L146 x W95 x D45mmUse for:Measure the speed of lathe motors and machineRange: 2.5 to 99,999 RPMPackaging content:1 x Digital Laser Photo Tachometer Non Contact Rpm Tach(Not Include Battery