【Touch Switch Digital Indicator】This touch switch digital indicator is used to accurately measure small linear distances in mechanical and industrial processes without reading errors. In the inspection process of machine parts, this tool helps to check the tolerance level and is an ideal tool for machinists, industrialists and laboratories. 【0 - 12.7mm Range 【Measurement】The measurement range is 0-12.7mm (0-0.5 inch), and the high resolution can reach 0.01mm (0.0005 inch). Touch button, sensitive touch function, just press the button to switch between metric and inch, switch and zero. 【USB Charging】With charging function, built-in rechargeable lithium battery, it can be used normally for 3 months after charging. The red light indicates that it is charging, and the green light indicates that charging is complete. 【IP54 Waterproof】It can be waterproof, dustproof and waterproof. oil, but it cannot be used in water or oil. If there is liquid on the surface, wipe it off in time. 【Removable Probe】Suitable for various probes M2.5 sides, easy to use. Has good wear and rust resistance. The screws are detachable and can be replaced with other sizes. Hole diameter: 6.5mm (back cover), movable, can be used for different magnetic base mounts. Number of shipments: 1 pcs