... output, 3.7 inch blue LCDXP3-18T-C10DI/8DO, transistor output, 3.7 inch blue LCDXP3-18RT-C10DI/8DO ... inch blue touch screen LCDXMP3-18T-C10DI/8DO, transistor output, 3.7 inch blue touch screen LCDXMP3-18RT ... -C10DI/8DO, 4 channels transistor/4 channels relay output, 3.7 inch blue ... Can expand 2 BD cardsXP3-16T-E8DI/8DO, 8 transistor output, 3.7 inch blue LCD; support RS485, ...