... windows7 3. waterproof, dustproof,scratchproof Infrared Touch Screen , IR touch screen panel ,IR add-on multi-touch screen ,Multi-Touch Infrared Touch screenFeaturesDust and water proofing, anti-vandal;Stable ... or outdoorDegree of protectionIP 68 standardInterfaceRS232, USB or optionalSensorInfrared raysOS compatibleWindows 2000/XP/Vista, Linux,CertificationsCCC, CE, ROHS 50" IR touch Sreen frame