Features1. Measuring the thickness of non-magnetic coating on the magnetic metal substrate. 2. Measuring the thickness of the non-metallic coating on the non-magnetic metal substrate. 3. Automatically identifying the non-magnetic metal substrate and magnetic metal substrate. 4. Single measurement, continuous measurement and differential measurement available. 5. Zero-point calibration, Offset Calibration and basic calibration available. 6. Metric and imperial units of measurement optional. 7. LCD backlight. 8. Automatic shutdown.Specification1. The measurement range: 0 ~ 1800pm / 70.8mi/18mm 2. Resolution: (0.1 um(less than 100um), pm( greater than or equal 100pm)0.1mil 0.001mm less thano r equal 150um, +/-5um 3. Measurement error: Greater than 150 um,+/-(3%H+1pm) 4. The lower limit diameter of magnetic matrix: 12mm 5. The lower limit thickness of magnetic matrix: 0.5mm 6. The lower limit curvature radius of magnetic convex matrix: 2mm 7. The lower limit curvature radius of magnetic concave substrate: 11mm 8. The lower limit diameter of nonmagnetic matrix:50mn 9. The lower limit thickness of non-magnetic substrate: 0.5mm 10. Operating temperature: 20 ~ + 40 degree C (it is recommended to use the working temperature range in different environments, especially when the temperature difference is large, it needs to be recalibrated before use) 11. Working humidity range: 10 ~ 95% RH 12. Battery 1.5V AAA alkaline battery x 2 (not included) 13. Dimension: 62 x 27 x 121.5mm 14. Weight: 105.03gSpecification: Package Weight One Package Weight 0.32kgs / 0.71lb One Package Size 18cm * 14cm * 6cm / 7.09inch * 5.51inch * 2.36inch Qty per Carton 60 Carton Weight 19.00kgs / 41.89lb Carton Size 57cm * 41cm * 45cm / 22.44inch * 16.14inch * 17.72inch Loading Container 20GP: 253 cartons * 60 pcs = 15180 pcs 40HQ: 588 cartons * 60 pcs = 35280 pcs