BENETECH GM200A Film/Coating Thickness Gauge, GM200A

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 - 1.80mm (0 - 71.0 mil)
2. Resolution: 0.01mm/1mm
3. Measurement error: +-0.03mm
4. Min diameter of substrate: 50mm
5. Min thickness of substrate: 0.5mm
6. Operating temperature: 0 - 40 celsius degree
7. Operating humidity: 10% - 95% relative humidity