Tecpel TG-902., believed to be the same as Horstek TC-115, CHY 115 and better than the Centech 95520 sold once by Harbor Freight in the USA.
This model also works with Non-Ferrous material such as Aluminum and Copper, as well as ferrous/steel/iron base metals. It does not work with plastics.
These are typically used by auto detailers to check thickness of paint prior to sanding/buffing etc, and by car dealers to check the relative thickness of the paint from panel to panel, thus indicating if the vehicle has been repainted at any time.
Measurement Range - 0-40 mils/0-1000 μm
Accuracy - ±4 digits on 0 to 7.8 mils
±10 digits on 0 to 199 μm
±(3% + 4 digits) on 7.9 - 40 mils
±(3% + 10 digits) on 200 - 1000 μm
Temperature Coefficient - ±0.1% of reading change in accuracy per degree change in ambient operating temperature above 82.4° F or below 64.4° F
Auto power-off after 30 seconds
Response Time - 1 second
Battery Requirement - 9V
Calibration Plate - 2" diameter steel disc
Gauge Controls - Calibration, Up-arrow, Down-arrow, Back Light, and mils/um
Weight (with battery) - 4.7 oz.
Includes battery, calibration disks, instructions and nylon belt case.