Feature:1. Various functions, 32 common functions, pulse triggering, power failure, cycle timing, etc., to meet more application needs.2. The relay is equivalent to a passive contact switch, which controls the on and off of a wire, which is simple and convenient to use.3. High compatibility, wide voltage working mode, 7v30v universal voltage, and support DC.4. The output power can be controlled within 5A DC or AC load, adjustable at any time from 0.01 second to 999 minutes.5. Wide range of applications, can be used to control solenoid valves, water pumps, motors, light strips, etc.Specification:Item Type: Relay ModuleProduct Model: YF-7Input Voltage: DC 7~30V OptionalOutput Power: Control DC or AC Load within 5ATime Range: 0.01 Second to 999 Minutes, Any Time AdjustableWiring Port Description:+: Input Power Positive-: Input Power NegativeIn+: Positive Signal Input TerminalIn-: Negative Signal Input TerminalNO: The Relay Normally Open Interface, the Relay is Suspended Before It is Closed, and It is Short-Connected to COM After It is Closed.COM: Relay Common InterfaceNC: Normally Closed Interface of the Relay, Short-Circuit with COM Before the Relay is Closed, and Hang in the Air After Being ClosedP-23: When the signal disappears for more than A second, the relay pulls in, the signal disappears, and the relay stopsP-24: There is a signal. After A second, the relay is closed. After the signal disappears for more than A second, the relay stops.P-25: There is a signal. After A second, the relay is closed. When there is another signal for more than A second, the relay stops.P-26: When there is a signal, the relay will stop after closing for A second, and when the signal disappears, the relay will stop after closing again for A second.P-27: If there is a pulse signal, the relay stops; if there is no pulse signal, the relay will be closed for A second; (the signal continues or the signal disappears will be regarded as no pulse signal)P-28: After power-on, after a delay of A seconds, the relay will be closed until the power is offP-31: After power on, the relay is closed for A second, disconnected for B second, infinite loop; power off stopsP-32: When there is a signal, start P-31 infinite loop; when the signal disappears, terminate the loopP-33: Give a signal to start P-31 infinite loop; give another signal to terminate the loopP-34: After power-on, the relay will be closed after a delay of A seconds, and stop after being closed for B secondsP-35: There is a signal, after a delay of A second, the relay will be closed, and the relay will be closed after being closed for B seconds.P-36: When there is a signal, after A second, the relay will be closed, and after B second, the relay will stop, the signal disappears, and the timer will be cleared and stopped.P-37: If there is a signal, the relay will stop automatically for A second when the relay is closed, and then it will count for B seconds after it stops. The signal trigger is invalid within the time A+B.P-38: When there is a signal, the relay will automatically stop when it is closed for A second, and after stopping and counting for B seconds, it will stop automatically when it is closed again for A second.P-41: No action when there is a signal; trigger when the signal disappears; the relay is disconnected after a delay of A timeP-42: The signal disappears, after delaying time A, the relay works; working time B endsP-43: The signal disappears. After the time A exceeds, the relay works; the working time B endsP-44: After giving the signal more than A times, the relay will be closed for B seconds and stopP-45: After power-on, relay 1 will work for A second and then disconnect; Relay 2 will work for B second and disconnectP-46: Give signal 1, after relay 1 works for A seconds and disconnects; relay 2 works for B seconds and disconnectsP-47: Give signal 1, after relay 1 works for A second; relay 2 starts to work; after B second, relays 1, 2 are disconnected at the same timeP-48: After power-on, relay 1 works for A seconds and then disconnects; stops for B seconds; relay 2 works for C seconds and disconnects and stops for D seconds; cycle.Package List:1 x Relay Module