This is a Smart Sensor AR932 Digital Film/Coating Thickness Gauge, which is used to measure the thickness of non-magnetic coatings on magnetic metal substrates, such as paint or film on car bodies.
It utilizes both magnetic induction and eddy current technology for accurate measurements.
The gauge has a measuring range of 0~1800 μm and a resolution of 0.1μm / 1μm.
It features a built-in probe for convenience, a backlight display, and an alarm buzzer.
The device is lightweight and portable, making it suitable for professionals in automotive and laboratory settings.