IR Touch Screen 37" 1) IR Touch screen 2) High-speed, 300 dots /S 3) ... ", 50", 52", 55", 57", 60", 63", 65", 70", up to 103". 1. High-speed, up to 300 dots coordinate/second2. Highly Responsive ... Element Pace5.97mmMinimum Touch body Diameter>5mmResponse Speed16ms—25msTouch Accuracy±1.5mmTouch LimitationNo Limitation Electricity Scan Frequency 50HzUSB1.1Connector typeA typeTransmission ...