5V 9V 12V 24V 1 Channel Relay Module with Optocoupler Isolation Support High or Low Level Trigger (9V)

Module description: Module Size: 50mm * 26mm * 18.5mm (L * W * H) With four fixed bolt holes, holes 3.1mm, spacing 44.5mm * 20.5mm Power Indicator (green), Relay Status Indicator (red) Interface: Input: VCC: Relay power supply + GND: Relay power supply - IN: Signal trigger input (High or Low Level Signal, select via jumper) Output: NO: Relay normally open. COM: Relay Common Pin NC: Relay normally closed. Package Included? 1*1 Channel Relay Module With Optocoupler Isolation