2Pcs 5V One Channel Relay Module Switch with Optocoupler Isolation Support High Low Level Trigger

2Pcs 5V One Channel Relay Module Switch with Optocoupler Isolation Support High Low Level Trigger Description

Module description: 1.The module Operating voltage 5V; 2.Fault-tolerant design, even if the control line is broken, the relay will not operate; 3.The power indicator (green), the relay status indicator (red); 4.Module size: 50mm x 26mm x 18.5mm (L x W x H). 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. High or Low Level Trigger Select: 1. Use High Level Trigger When ' IN ' input High Level Signal, the ' NO ' connect with ' COM ' When ' IN ' input Low Level Signal, the ' NC ' connect with ' COM ' 2. Use Low Level Trigger When ' IN ' input Low Level Signal, the ' NO ' connect with ' COM ' When ' IN ' input High Level Signal, the ' NC ' connect with ' COM ' 3. High or Low Level Trigger Select Jumper connect with L, Low Level Trigger Jumper connect with H, High Level Trigger Color: As Shown Material: plastic Package Contents: 2 x relay module Only the above package content, other products are not included. Note: Light reflection 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. Module description: 1.The module Operating voltage 5V; 2.Fault-tolerant design, even if the control line is broken, the relay will not operate;