*STN LCD尺寸:2.8吋(TP02),3吋 (TP04)*分辨率:160 x 32點 (TP02 ),128 x 64點 (TP04)*內置256kB 閃存*TP02提供 16個功能鍵規劃輸入*TP04提供 12個功能鍵規劃輸入*TP02內置 RS-232與 RS-485通訊端口*TP04內置 RS-232與 RS-485/RS-422通訊端口*支持密碼設定功能