Features - High quality metal probes - Two measuring method: continuous and single - Two working mode: direct and batch - Limit setting function - Switch off automatically or manually Measure Materials Magnetic Induction (Fe): measuring the thickness of Non-magnetic coating on magnetic metal substrate, such as aluminum, chromium, copper, zinc, rubber, paint on the base of steel, iron, alloy and magnetic steel. Eddy Current(NFe): Measuring the thickness of Non-conductive coating on non-magnetic metal substrate such as rubber, plastic, paint, oxide on the base of aluminum, cooper, zinc, tin. Warranty: 1 Year warranty subjected to terms and conditional Find out more at https://matrixintegrity.com/coating-thickness-gauge-leeb210-211-220-221-222/ or email us at salesmatrixintegrity@gmail.com Price does not include additional taxes, fees and surcharges. Please note pre-order usually takes about 1-4 weeks.