CenryKay 12V 1 Channel Relay Module?Optocoupler Isolation Support High and Low Level Trigger 10PCS

Technical Parameters: Relay module:12V Quiescent Current:5mA Maximum current: 80mA Trigger current: 2-4mA Trigger voltage (low): 0-4V Trigger voltage (high): 4.5-12V Power Indicator: Green Relay Status Indicator: Red Size(L x W x H): 51*26*19mm Interface Description: 1. DC +: positive power supply (VCC) 2. DC-: negative power supply (GND) 3. IN: can be high or low level control relay Relay outputs: 1. NO: normally open relay interface; the relay is suspended before the suction, and it is short-circuited with COM after the suction. 2. COM: Common Interface Relays 3. NC: normally closed relay interface; and the relay is shorted to COM before the suction is closed. High and low level trigger options: It is low level trigger when jumper connect to LOW pin It is high level trigger when jumper connect to HIGH pin Package List: 10x 5V 1-Channel Relay Module