SMART SENSOR Automotive Iron And Aluminum Paint Coating Thickness Gauge 1. Measuring range: 0μm - 1700μm 2. Measurement principle: magnetic and eddy current thickness measurement 3. Resolution: 0.1μm (0 - 99μm) 1μm (100 - 1700μm) 4. Measurement repeatability: 1μm 0-500μm 2μm 500-1500μm 5. Measuring area (minimum): magnetic 25x25mm; non-magnetic 25x25mm 6. Curvature (minimum): convex 5mm; concave 30mm 7. Substrate thickness (minimum): magnetic 0.2mm; non-magnetic 0.05mm 8. LCD backlight: yes 9. Low battery warning: yes 10. Zero calibration: yes 11. Basic calibration: yes 12. Singlecontinuous measurement: yes 13. Auto power off: yes 14. Unit conversion: yes 15. Operating environment: 0-50°C 16. Power supply: 2 x 1.5V AAA batteries (not included) 17. Data storage: 20 data sets 18. Automatic calibration: calibrates based on five different calibration substrates: 050100250500 19. Includes NFEFE professional calibration sheets for convenient calibration anytime, anywhere 20. Press and hold the MENU button to enter calibration mode, which allows for calibration data, zero calibration, and multi-point calibration using standard sheets 21. High-definition digital screen with backlight for clear readings, perfect for dark environments 22. High-precision, non-destructive probe automatically identifies substrate type for fast and accurate coating thickness measurements 23. Dimensions: 123 x 55.6 x 28.8 mm