Features Scratch-resistant ABS: made of high quality ABS material, good impact resistance, scratch resistance, environmentally friendly. EXCELLENT PERFORMANCE The command supports function codes 03 06 16, the maximum delay under the command is 255 seconds, and the default baud rate is 9600 BPS. CONNECT 64 DEVICES PARALLED: In command mode, up to 64 devices can be connected in parallel, versatile and multifunctional. WITH 6 INSTRUCTIONS The relay control module comes with instructions for opening, closing, instantaneous, self-locking, locking and delaying. Various input methods: In addition to serial hyperterminal input, the command can also be entered for poll. Specification: Element Type: Relay Control Module Material: ABS Operating voltage: DC 24 V. Working current: Standby 14MA, 1 Relay 44MA, 2 Relays 69MA, 3 Relays 95MA, 4 Relays 121MA, 5 Relays 149MA, 6 Relays 175MA, 7 Relays 199MA, 8 Relays 226MA etc. The command supports function code 03 06 16 The maximum delay under command is 255 seconds Standard baud rate: 9600BPS Baud rate can be selected by jumper: 2400, 4800, 19200, 38400, 57600, 115200BPS Verification mode cannot choose verification, even review, odd check The return time for sending data can be set, the maximum can be set to 1000 ms Package list: 1 x relay control module. Small note: Please pay attention to the correct operation. Package List 1 x Relay Control Module