... 4-wire/5-wire resistive touch screen, USB/RS232 optional; high performance, competitive ... Mechanical Input Method: Finger, pen, or gloved hand Touch Activation Force: < 80 grams typical Surface Hardness: ... -30 - 70C Humidity: 60C, 90% RH 240HR Touch Durability: 5 Million touches in a single location Surface ... 2 times/s) NEMA 4 Capable touch screen controller card for touch screen/USB or RS232 controller