custom infrared touch screen from Lingyun Vision Touch Co., Ltd. Touch Point: single point, 2-points, 4-points, 6-points, 10-points Feature 1). Stability. No drift with the change of time and environment 2). Adaptability. Adaptable for harsh environment(vandal-proof &dust-proof), anti to the interface of current, voltage and electrostatic 3).Long life. Highly durable, scratch-proof 4).Nice to touch. No requirement to touch strength, touch object 5).Driver-free. Integrated controller, USB