Feature: 1. WORKING MODES: Input output relationship can be set to default self locking, interlocking, instantaneous, output equal to input, multiple working modes. 2. 2 CHANNEL: Multifunctional RS485 relay board, 2 channel design, which has excellent performance, stable connection and less interference. 3. GOOD PROTECTION: This 2 channel relay module board has hardware reset function and TVS anti surge protection to ensure reliable working performance. 4. PARITY METHOD: The relay module has no parity, even parity and odd parity, and is widely used in industrial automation and electrical equipment, etc. 5. COMPACT SIZE: The relay control module has a compact size and light weight, is convenient and safe, takes up little space, and is stable and reliable. Specification: Item Type: 2 Channel Relay Module Material: PCB Working Voltage: DC 12V Standby Current: 11MA 1 Relay Open: 30MA 2 Relays Open: 49MA Default Baud Rate: 9600BPS Selectable Baud Rate by Command: 2400, 4800, 9600, 19200, 38400, 57600, 115200BPS Maximum Data Sending and Returning Time: 1000ms Parity Mode: No parity, even parity and odd parity Hardware Reset Function: Yes TVS Anti Surge Protection: Yes. Package List: 1 x Relay Module Note: Pay attention to the correct operation.