1. Product model: YF-7 32 common functions to meet more application needs; can control solenoid valve, water pump, motor, lamp belt, etc.2. Input voltage: DC 7-30V or AC 220V3. Output power: can control DC or AC load within 5A4. Time range: 0.01 seconds to 999 minutes adjustable at any time5. Wiring port description:(1). + : Input power positive(2). - : Input power negative(3). IN+: positive signal input(4). IN-: signal input negative(5). NO: The relay normally open interface, the relay is suspended before the suction, and the short is connected with COM after the suction(6). COM: relay common interface(7). NC: The relay normally closes the interface, and the relay is shorted to COM before the suction is closed.(8). Function list: function can be arbitrarily set to buy back, there are instructions provided; power failure can memorize any parameters setSignal 1 corresponds to relay 1; signal 2 corresponds to relay 2; The two channels can be triggered at the same time; they are independent of each other; they do not affect each other; the respective relays of the respective signal tubescolor:GreenMaterial:PCBsize:75 x 34mmPackage Contents:1 x Relay moduleOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.