HP7235B Contact tachometer

5 Digital LCD DisplayMeasure Range : 0.5~99999Line rotate speed : 0.1~9999.9Resolution : 0.1~1RPM                    0.1 M /Min99 team data memoryUnit select Max / Min / Last data referWhite back lightAuto Power OffPower Supply : AAA battery ×4Accessories : handbag ,Wheel