Large LCD displaying Wide measuring range !#!amp!*! 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: Net Size: L130 x W65mm mirror Length: L50 x W25mm Scan Diameter: 17mm Battery length: L44 x W25 x D16mm Package Size: L146 x W95 x D45mm Net Gross Weight: 124g \208.5g Packagingcontent: 1 x New Digital Laser Photo Tachometer Non Contact RPM Tach(NOT INCLUDE BATTERY) 1 x carrying bag 3 x approx. 75cm of reflective stripes