Text Display
1.HW-40B is regularly blue screen, gray screen and kelly screen is optional. 4*12 Chinese characters can be displayed on it. It is 4.0” SNT LCD with 192*64 pixels, 64KB storage and 8 bit processor.
2.HW-30B：60K colors display. 15*20 Chinese characters can be displayed on it. It is 2.8” TFT LCD with 320*240 pixels, 256KB storage and 32 bit processor.