HW-300MINI Auto Thickness Gauge Digital Coating Car Paint Tester 0.1micron/0-2000 Car Paint Film Thickness Tester Measuring Description: Product Name: HW-300MINI Coating Thickness Gauge Material: ABS Product size: 95*40*22MM Power supply: 2×1.5V AAA batteries (battery not included) Probe: F probe, N probe Magnetic induction: Measuring principle(F), Eddy current effect(N) Measuring range: 0-2000UM Measurement accuracy: ±(3% 1UM) Operating temperature: -10°C~50°C Accessories: Thickness Gauge 1PCS Manual Calibration Sheet Feature: 1. Ultra-precision resolution 1um, FE/NFE coating measurement, automotive paint 0-2000um 2. Small size and high precision 3. Battery level indicator 4. Automatic shutdown function 5. for FE/NFE Measurement step: Step 1. Prepare the parts to be tested. Step 2. Stay away from the metal object at least 2 cm, press the switch key to turn on. Note: it is suggested that the instrument should be zeroed with reference to "zero calibration" before testing. Step 3. The probe is placed vertically and quickly on the surface to be measured until the drop is heard, and the measured value is displayed on the screen, and then the probe is lifted at least 2 cm away from the part to be measured, and the next measurement can be carried out. Note: if the automatic shutdown function is turned on and there is no operation within 3 minutes, the instrument will automatically shut down. Specifications: This product is mainly used to measure the thickness of non-conductive coating on metal surface, as well as the thickness of non-ferromagnetic coating on ferromagnetic metal (such as iron, nickel, cobalt,