... of about four-wire resistance of 10 times.Almost to touch with any object· Waterproof, dustproof, anti-oil pollution, ... test strikes: over 1 millionOperating voltage: 5V DCResistance: 200 to 900ΩLinearity: <2.5%Faceplate surface: anti-glare ... equipment system and accessories,capacitive touch screen,resistive touch screen, all in one touch screen computer,students touch sensitive smart whiteboard series, ...