100% Brand New.Large LCD displayingWide measuring range & high resolution. The use of durable.The last value/min . value will be automatically stored in memory and can be displayed by turn anytime.The RPM of motors and machine parts.The housing has been carefully shaped to fit comfortably in either hand.Digital display gives exact RPM with on guessing or errors. It is a great tool to measureIn wood and metal working it can be used to accurately measure the speed of a lathe.Display: Large 5 digit， 18mm LCD.Test select: Automatic.Range: 2.5 to 99，999 RPMResolution: 0.1 RPM (from 2.5 to 999.9 RPM) 1 RPM (over 1，000 RPM)Accuracy: +/-( 0.05% +1 digit)Distance: 50 to 500mm/ 2 to 20 inchMemory: Last Value. Max Value. Min RPMSize:130x70x29mmWeight:160g Package:1 x New Digital Laser Photo Tachometer Non Contact RPM Tach1 x English Manual1 x carrying bagThe battery is not include