dell 15 inch touch screen monitor.4) If the sonic screen is inaccurate after a period of use, it may be the reflection stripes around the screen or the transducer is covered by dust. If you are using our company's KA-type cabinet, you can open the upper cover with a dry Clean the surface with a soft cloth dipped in industrial alcohol or glass cleaning solution, and then re-run the system. Note that the upper left, upper right, and lower right transducers cannot be damaged. Then power off and restart the computer and recalibrate.

dell 15 inch touch screen monitor.4) If the sonic screen is inaccurate after a period of use, it may be the reflection stripes around the screen or the transducer is covered by dust. If you are using our company's KA-type cabinet, you can open the upper cover with a dry Clean the surface with a soft cloth dipped in industrial alcohol or glass cleaning solution, and then re-run the system. Note that the upper left, upper right, and lower right transducers cannot be damaged. Then power off and restart the computer and recalibrate. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.