Our regular size for SAW touch screen as below (inch) : 8.4 14 15 17 18.5 19 20 21.5 22 23.1 23.6 24 26 27 32 Product Cataloge SAW (Surface acoustic wave) touch screen/monitor IR(Infrared) touch screen/monitor Porjected Capacitive touch screen/monitor/Nano touch foil Resisitive wide-4/5-wire touch screen/monitor All in one touch PC Interactive electronic education whiteboard Main Features: *Same driver for both USB and RS232 from 7” to 32” *8"-32" SAW touch screen 4mm/6mm glass,Support Windows/Linux/Android operating system *5V/12V USB interface(RS232 is optional) *High image clarity *Free of drift *Z-axis pressure recognition *Strong mechanical strength *Short response time *Easy integration *Customization available on glass sensor size, driver, accessories *General/Vandal-Proof/Anti-glare /Dust-proof Technical specification Technology : Surface Acoustic Wave(SAW) Resolution : 4096 x 4096 ,Z-axis 256 Material : Pure glass(Vandal-proof ,Anti-glare) Accuracy : < 2mm Light Transmission: >92% /ASTM Surface Hardness : Mohs' 7 Multi-touch : Optional ( software support ) Parts : Connect cable,Double-sided adhesive, dustproof strip,Controller Certificates : CE, FCC, RoHS Interface : USB，RS232 can optional Working voltage : 12V±1V & 5V±0.5V optional Working Current : 80mA Maximum Current : 100mA Response time : ≤16ms MTBF : > 500,000 hours Operate system : WinXP/Win7/WinXPE/WinCE/Linux/Android Contact information Tel : + 86 13691867206 Skype : phenix8023 QQ : 753179502 Website : www.cjtouch.com Email : phenix@cjtouch.com https://cn.linkedin.com/in/phenix-song-5b9693116