... metal frame) 2, excellent sensitivity Infrared touch easy screen size options TLS-V15,TLS-V17,TLS-V19,TLS- ... CHumidityWorking humidity 20% to 85%Storage humidity 0~95%Light test(220V,100W) for distance of 350mmWorking height3,000MPC interfaceUSB2. ... for your demonstration, shape change, color change and so on.Screen coverSupport area cover for all round directionsResource bankOffer editable resource ...