1. The signal triggers the relay to , the time is up, the relay is disconnected, during the delay periodA: Re-triggering is invalid B: Re-triggering and re-timing C: Re-triggering the relay reset to terminate the timing2. The signal trigger starts timing time T1. When the time is up, the relay pull-in time T2 is disconnected (reset). The time of T1 and T2 is adjustable.3. Circular : T1 is turned on, T2 is turned off, and the cycle is . Both T1 and T2 time are adjustable4. When there is a signal, the relay is pulled in, keeps pulling in, the signal disappears, and the timing starts. When the time is up, the relay is turned off. During the delay period, the signal is given again, the delay is canceled, the signal disappears, and the timing is restarted.Material: PCBColor as shownThe relay pulls in, the normally open terminal and the common terminal are connected, and the normally closed terminal and the common terminal are disconnected; working mode : After connecting the , press and hold K1 for 2 seconds to enter the function mode.P1-1~P1-4 can be , P1-1 working mode: the signal triggers the relay to , the time is up, the relay is disconnected. The user can set the time for the relay to , press the K2 hundred digit digital tube to flashing, At this time, press K3, digit will change; press K2, the tens digit begins to flash, press K3, the tens digit will change; The number changes; press K2 again, ; the digital tube no flashes, press K3 at this time, the decimal shifts, the decimal in 's place means 0 to 999 minutes, and the ten's place means 0 to 99.9 seconds without a decimal means 0 to 999 seconds; After the is made, the time setting is completed. Short press K1, you can enter the fine adjustmen settings of the function, the trigger is invalid during the default delay, press K1 once, the trigger is valid during the delay (re-time), press K1, reset during the delay (time off, relay reset), Press again to repeat the default first setting.Package Contents:1 x Relay module1 x caseOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.