18.5inch capacitive touch screen capacitive touch screen 12.1/15/ ... question, pls contact me , you are welcome anytime! Name:wintouch 18.5inch capacitive touch screen We also supply new touch controllerOutside ... 5mA~25mAHumidity<95%Isolation Resistance20MΩ↑@ DC25VSealable againstdust,water,oil,static 18.5'' surface capacitive touch screen