Item Name: Display Electronic Height Gauge Vernier Caliper Ruler Digital Height Gauge. Zero SettingResolution:0.01mm/0.0005"0N/OFF Switchmm/inch SwitchPower:one CR2032 3V batteryRange:0~150mm/6"With Data Output InterfaceDIGITAL HEIGHT GAUGEFOR WOODWORKINGRANGE:0~1 50mm/6"Resolution:0.01mm/0.0005"FEATUREThis gauge is a highly accurate measuring device developed specifically for woodworking.lt can be used to set saw blade and router bit height as well as to set the distance from a router fence to the bit. Strong magnets base allows easy setting on steel jointer fences and bandsaw tableMAINTENANCE INSTRUCTIONS1.Before using the Height Gauge,clean the surface of the protective sticker with dry andclean cloth (or soaked with cleaning 0)2.0perating