Please feel free to buy our products, we have excellent after-sales service. [100% SATISFACTION]Contact us first if you have any problems with our product or service. We will try our best to help. Feature: 1. Portable, fast. 2. Micro power consumption. 3. Compact and beautiful. Specification: Measurement range: 0~1.80mm/0~71.0mil Resolution: 0.01mm/1mil Measurement error: ±0.03mm Minimum base diameter of base: approx. 50mm/1.96'' Minimum thickness of base: approx.0.5mm Power supply: 2*1.5V AAA battery(not included) Working temperature range: 0~40℃ Working humidity range: 10~95%RH Size: approx.65*31*108mm/2.55*1.22*4.25'' Gross weight: approx.80g (no battery) Color: Yellow, White, Blue Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. 1 x Thickness Gauge Tester 6 x Coating Thickness Films 1 x User Manual(English) If you do not understand, please send us an email.