DC 12V Delay Timer Relay LED Digital Display Programmable Readout Multi-function Delay Timer Relay Module with Buzzer for Car

Feature: Anti-reverse voltage input circuit, worry-free wiring. Signal input optocoupler isolation, anti-interference ability. Set the parameters of power and permanent memory. Powerful flash MCU online programming capabilities, according to user needs can contact the manufacturers to customize the functionality. Instruction: S1: power on, press S1 2 seconds to enter mode selection menu, press S1, choose P-1 ~ P-4 mode. S2: OK / Shift key: Press to adjust the position of the LED is blinking, which LED is blinking, S3 to adjust the value of digital tube flicker. Until you press S2, the digital is no longer flashing. S3: digital display flashes, S3 adjustment digits from 0-9 successively changed. Normal digital tube display, S3 to adjust the position of the decimal point, the decimal point in bits 0-999 minutes; in 10 bit from 0 to 99.9 seconds; no decimal point indicates 0-999 seconds. Description: P-1: triggering signal is received, the relay is turned on, the timer expires, the relay off. A1: During the delay trigger again invalid A2: During re-timing delay trigger again A3: Delay trigger again during termination timing relay reset P-2: triggering signal is received, X start time, the end of counting relay, Y start time, the end of counting the relay off P-3: Cycle Switch Mode A1: After power relay is turned on, the end of the timing off, an infinite loop. A2: After power relay is off, the timing turned end, an infinite loop