Aerospace - 150 mm Digital LCD Vernier Caliper Gauge with Micrometer Metal Housed - Aerospace vernier Caliper is made up of stainless steel and plastic material. It comes with LCD display and is powered by 1LR44 battery. The digital LCD vernier Caliper gauge is a form of a hi-tech precision instrument. The device has zero settings at any position that provides a precise reading. User can measure inch or millimetre with the option of locking screw for accuracy purpose. It can measure internal and external distances with extreme accuracy. It is effortless to use the tool, and the user can switch between metric or imperial with a simple push-button.