4PCS 5V Channel Relay Optocoupler Isolation Module Red Board 3-5 V High and 0-1.5V Low Triggered Load Level Control
- Trigger Current 5A, can be used to all kinds of Single Chip Microcomputer IO control triggering, normally open and normally close two work mode.By switching the trigger level selection terminal to set 3-5V high level or 0-1.5V low level trigger controlled.Adopting patch piece opto-isolator, green , red relay status .Strong drive capability, stable performance, clear work condition.Fault tolerant designed, humanized lead wire terminals, even the control line break off, the relay still keep working.
