Features: Large screen with backlight, user can read the measurement easily in the dark. High Sensitive Probe: probe structure, good stability, one-button measurement. Power supply by 2 pieces 1.5V AAA batteries(Not included), micro power consumption. The measuring range of this paint thickness gauge is 0 to 2000um(78.7mils). It can meansure the thickness of non-metallic coating such as paint,film,etc. Suitable for laboratory, workshop, paint shops, automobile, industries, etc.