17.3 inch touch screen kit.Capacitive touch screens currently support multiple touches . Just touch, no need to press, it can sense light and fast touch, scratch-resistant, not afraid of the effects of dust, water and dirt. There is no response when touched, the capacitive touch screen is a layer of transparent special metal conductive material pasted on the glass surface . Since the touch is made of glass, it has a longer service life. When a finger touches the metal layer, the capacitance of the contact changes, so that the frequency of the oscillator connected to it changes, and the touch position can be determined to obtain information by measuring the frequency change. Because the capacitance changes with different temperature, humidity, or ground conditions, its stability is poor, drifting tends to occur , and reflection is severe. Therefore, it is not suitable for use in industrial control places and places with interference. Can be used for public information queries that require less precision. When the outside world has inductance and magnetic induction, it will make the touch screen fail, and it needs human touch. If the screen is small, it is difficult to touch.

17.3 inch touch screen kit.Capacitive touch screens currently support multiple touches . Just touch, no need to press, it can sense light and fast touch, scratch-resistant, not afraid of the effects of dust, water and dirt. There is no response when touched, the capacitive touch screen is a layer of transparent special metal conductive material pasted on the glass surface . Since the touch is made of glass, it has a longer service life. When a finger touches the metal layer, the capacitance of the contact changes, so that the frequency of the oscillator connected to it changes, and the touch position can be determined to obtain information by measuring the frequency change. Because the capacitance changes with different temperature, humidity, or ground conditions, its stability is poor, drifting tends to occur , and reflection is severe. Therefore, it is not suitable for use in industrial control places and places with interference. Can be used for public information queries that require less precision. When the outside world has inductance and magnetic induction, it will make the touch screen fail, and it needs human touch. If the screen is small, it is difficult to touch. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.