1、Support pulse signal, and the signal pulse width can be determined that the completion of a valid trigger. 2、Three digital display settings, the delay time information, energy-saving standby automatically turns off. 3、Longest delay time of 999 hours, minimum 0.1 minutes, delay time range is adjustable. 4、With optical coupling isolation, improved anti-interference ability, industrial level circuit board. 5、All set parameters will be automatically saved if there is a power failure. 6、Interface is clear, simple and powerful, easy to understand, almost meet all your needs. 7、With long service life, it can use up to more than 100,000 times. Condition: 100% Brand New Item Type: Timer Relay Module Color: As shown in the picture Size: Approx.64.2x34.8x18.5mm / 2.5x1.4x0.7in Weight: Approx.27g/1oz Delay Time Range: Minimum 0.1 seconds, maximum 999 hours adjustable. Quiescent Current: 20mA Operating Current: 50mA Service Life: ≥100,000 times Working Temperature: -40~85℃ Button Setting Instructions: K1: Function selection button: Press and hold K1 for 2 seconds, P-* appears, short press K1 to select mode, press K2 to enter mode K2: Shift key: Press to adjust the flashing position of the digital tube, which digital tube flashes, K3 adjusts the value of the flashing digital tube. Until K2 is pressed, the digital tube will no longer flash, the setup time is completed, the setup time is automatically saved and the power is turned off. K3: When the digital tube is flashing: K3 adjusts the digital change, and 0 to 9 changes sequentially. 1 x Timer Relay Module