Relay Features
5V/12V/24V 1 Channel Relay Module with Optocoupler Isolation High and Low Trigger(Red Board)

1.the module uses genuine quality relay, normally open interfaces Maximum load: AC 250V / 10A, DC 30V / 10A;
2.SMD optocoupler isolation, strong driving ability, stable performance; trigger current 5mA;
3.the module voltage 5V, 12V, 24V to choose from;
4.the module can be set high or low triggered by jumper;
5.fault-tolerant design, even if the control line is broken, the relay will not operate;
6.power indicator (green), relay state indicator (red)
7.interface design user-friendly, all interfaces are available through the wiring terminal direct connection leads, very convenient
8. module size: 50mm * 26mm * 18.5mm (L * W * H)
9. has 4 mounting bolts holes, hole 3.1mm, 44.5mm * 20.5mm spacing