... , relay output, 3.7 inch blue LCDXP3-18T-C10DI/8DO, transistor output, 3.7 inch blue LCDXP3-18RT-C10DI/ ... relay output, 3.7 inch blue LCDXMP3-18R-C10DI/8DO, relay output, 3.7 inch blue touch screen LCDXMP3 ... channels transistor/4 channels relay output, 3.7 inch blue touch screen LCD, support 2 axes pulse ... communicationXP3-16R-E8DI/8DO, 8 relay output, 3.7 inch blue LCD; support RS485, 2CH pulse output, ...