DC 5V 4 Channel Relay Module Board Shield with Optocoupler / High and Low Level Trigger for Arduino Relay

1. the module uses quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A;
2. using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA;
3. the module Operating voltage 5V;
4. the module can be high or low by a jumper setting trigger;
5. fault-tolerant design, even if the control line is broken, the relay will not operate;

6. the power indicator (green), the relay status indicator (red)
7. the interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient
8. module size: 75mm x 52mm
Module interface:
1. DC+: positive power supply (VCC)
2. DC-: negative power supply (GND)
3. IN: can be high or low level control relay
Relay outputs:
NO or NOx: load access terminal, normally open
COM or COMx: load access, common
NC or NCx: load access terminal, normally 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
There are differences in different batches of printing, which does not affect the use
Colour:red+blue
Material:PCB, metal

Package Contents:
2 x DC 5V 4 Channel Relay Module With Isolated Optocoupler High and Low Level Trigger

Only 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.