Features: 1. With 2-channel input and output control, each channel can be set separately 18 kinds of features to meet the needs of more applications; 2. With a power anti-reverse function, not because of a wrong power supply is damaged module; 3. The use of top-quality high-voltage power supply modules, the system is more stable and reliable; 4. Can be set to a minimum of 0.1 seconds timing, timing accuracy better than 0.01 seconds; 5. Increase in automatic power saving feature, users can set their own; 6. All settings option to automatically save the contents of non-volatile setting. 7.4 digital tube size is 0.9 inch, digital display color is red. Module Interface Module voltage / signal input: 3-wire interface, all interfaces are terminal, user-friendly 1, DC +: DC power positive 2, DC-: negative DC power supply 3, CH1: Input Signal Detection Interface 1 4, CH2: Input Signal Detection Interface 2 Load relay outputs: 3-wire interface, all interfaces are terminals 1, NO1: After the first relay normally open interfaces, relay before floating, shorted pull with COM1 2, COM1: first relay Common Interface 3, NC1: The first relay normally closed port, COM1 relay shorted before and after the pull-vacant 4, NO2: After the second relay normally open interfaces, relay before floating, shorted pull and COM2 5, COM2: second relay Common Interface 6, NC2: second normally closed relay interface relay short front and COM2, pull vacant post