Features: 1. Rechargeable and Convenient: TC300 rechargeable coating thickness gauge, ensuring that you never have to worry about running out of power during your measurements. 2. Wide Application: The digital coating thickness meter are widely used in manufacturing company, shipbuilding, aircraft industries, metal machinery industry, chemical industry, especially in automobile/car trading. 3. Fe-Probe/Magnetic Induction: The car paint mill thickness gauge can measures the thickness of non-magnetic coating layers on magnetic substrate. Such as (aluminum, chrome, copper, enamel, rubber, paint) on magnetic substrate (steel, iron, alloy and magnetic stainless steel). 4. NFe-Probe/Eddy Current: The paint depth tester can also measures the thickness of nonconductive coating layers covered on nonferrous substrate. Such as, (enamel, rubber, paint, , plastic anodic-oxide layer) covered on nonferrous substrate (aluminum, brass, zinc, tin and nonmagnetic stainless steel). Specification: Measuring range: 0~3000μm or 0~118mil Resolution: 0.1μm(0~99.9μm), 1μm(100~3000μm) or 0.01mil(0~9.99mil), 0.1mil(10~99.9mil), 1mil(≥100mil) Min measurement area: 6X6mm Thinnest substrate thickness: 0.4mm Usage environment: Temperature: -20~40℃(-4~104°F); humidity: 20%~90%RH, No strong magnetic field environment Measurement accuracy 0~1000μm: ±(3%+1μm) or ±(3%+0.04mil); ≥1000μm: ±(5%+1μm) or ±(5%+0.04mil) Calibration method: Zero calibration; Point calibration; Reset calibration Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! With battery Material: plastic colour: black+green Package Contents: 1 x Coating thickness gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.