Mini handheld gun type design <br> <br> Automatic and manual measurement selectable <br> <br> Data record and recall <br> <br> MAX/MIN/AVG record function <br> <br> Record time interval setup function <br> <br> LCD with backlight <br> <br> Data hold function <br> <br> Auto and mamual power off <br> <br> battery indication <br> <br> Specifications: <br> <br> Measuring Range:2.5-99999RPM <br> <br> Resolution:0.1RPM,at 2.5~ .9RPM;1RPM,at 1000~99, RPM <br> <br> Accuracy:&plusmn;0.02% 1digtal <br> <br> Measuring distance:50~500mm <br> <br> Sampling Time:0.5s(above120RPM) <br> <br> Operation temperature:0 to 50oC(32 to 122oF) <br> <br> Operation humidity:10 to 90%RH <br> <br> Storage temperature: -10 to 60oC(14 to 140oF) <br> <br> Storage humidity:10 to 75%RH <br> <br> Dimension:145*90*35mm <br> <br> Power supply: 9V battery(battery not include) <br> <br> &nbsp; <br> <br> Specifications: <br> <br> Mini handheld gun type design <br> <br> Automatic and manual measurement selectable <br> <br> Data record and recall <br> <br> MAX/MIN/AVG value record function <br> <br> Record time interval setup function <br> <br> LCD with backlight <br> <br> &nbsp; <br> <br> Package Included: <br> <br> 1*Digital Tachometer <br> <br> Notes: <br> <br> Due&nbsp;to&nbsp;the&nbsp;difference&nbsp;between&nbsp;different&nbsp;monitors,&nbsp;the&nbsp;pictures&nbsp;may&nbsp;not&nbsp;reflect&nbsp;the&nbsp;actual&nbsp;color&nbsp;of&nbsp;the&nbsp;item. <br> <br> Compare&nbsp;the&nbsp;detail&nbsp;sizes&nbsp;with&nbsp;yours,&nbsp;please&nbsp;allow&nbsp;1-3cm&nbsp;error,&nbsp;due&nbsp;to&nbsp;manual&nbsp;measurement. <br> <br> Please&nbsp;leaving&nbsp;a&nbsp;message&nbsp;before&nbsp;you&nbsp;give&nbsp;the&nbsp;bad&nbsp;feedback,&nbsp;if&nbsp;the&nbsp;products&nbsp;have&nbsp;some&nbsp;problems. <br> <br> Thanks&nbsp;for&nbsp;your&nbsp;understandings. <br> &nbsp; <br> <br> &nbsp;