Dc 5v 4 Channel Relay Module Board Shield 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 convenient8. module size: 75mm x 52mmModule interface:1. DC+: positive power supply (VCC)2. DC-: negative power supply (GND)3. IN: can be high or low level control relayRelay outputs:NO or NOx: load access terminal, normally openCOM or COMx: load access, commonNC or NCx: load access terminal, normally closedHigh and low level trigger options:It is low level trigger when jumper connect to LOW pinIt is high level trigger when jumper connect to HIGH pinThere are differences in different batches of printing, which does not affect the useColour:red+blueMaterial:PCB, metalPackage Contents:2 x DC 5V 4 Channel Relay Module with Isolated Optocoupler High and Low Level TriggerOnly 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.