Features: 1: Product model: 24 functions to meet more application requirements, it can control solenoid valves, water pumps, motors, lightstrips, etc. 2: Input voltage: DC 5/6/12/24V optional 3:Output power: can control DC or AC load within 5 A 4: Time range:0.01 second to 999 minutes. adjustable Wiring port description: 1. DC+: Input the positive pole of the DC power supply 2.DC-: Input the negative pole ofDC power supply 3.IN+: Positive signal input terminal 4.IN-: negative signal input terminal 5. NO: Relay normally open interface, the relay is suspended before it is closed, and shorted to COM after it is closed 6.CO: common interface of relay7. NC: Normally closed interface of the relay, the relay is short-conmected with CO before it is closed, and it is suspended afterbeing closed Button trigger. (positive trigger: DC- and in- short-circuit, DC+ and IN+ are conmected to the button)Or. (Negative trigger: DC+ and in+ are short-circuited, DC- and IN- are connected to the button)