... touch screen LCDXMP3-18RT-C10DI/8DO, 4 channels transistor/4 channels relay output, 3.7 inch blue touch screen LCD, support 2 ... ; 220VAC; Can expand 2 BD cardsXP3-16T-E8DI/8DO, 8 transistor output, 3.7 inch blue LCD; support RS485, 2CH pulse output ... 2 BD cardsXP3-16RT-E8DI/8DO, 4 relay output, 4 transistor output, 3.7 inch blue LCD; support RS485, 2CH pulse output ...