Products 3.5 -inch screen 4.3 -inch screen 7 inch screen 2.4 -inch screen 2.8 -inch screen Core board 5 inch screen 10.1 -inch screen Model Size storage Serial communication port Working temperature 10.1寸裸屏 10.1 "TFT LCD screen 128M FLASH COM1:RS232 or RS485, COM2 :RS232 or RS485 -20℃~60℃ 10.1寸人机界面 10.1 "TFT LCD screen 128M FLASH COM1 supports 232/485/422, and COM2 supports 232/485 -20℃~60℃