BENETECH GM210 Film/Coating Thickness Gauge, GM210

Features
1. Measure thickness of surface coatings on metal substrates
2. Single/continuous/differential measurement available
3. Zero-point/2-point/basic calibration available
4. Metric and imperial units of measurement optional
5. Powered by 2 x 1.5V AAA batteries
6. LCD backlight
7. Auto power off

Specifications
1. Measuring range:0 - 1800 micron / 0 - 70.9 mil
2. Resolution: 0.1 micron/1 micron/0.1 mil
3. Measurement error: +-(3%H + 1 micron)
4. Min diameter of substrate: 12mm
5. Min thickness of substrate: 0.5mm
6. Min curvature radius of convex substrate: 2mm
7. Min curvature radius of concave substrate: 11mm
8. Operating temperature: 0 - 40 celsius degree
9. Operating humidity: 10% - 95% relative humidity