GERI® 12V 4-Channel Relay Module with Optocoupler H/L Level Triger for Arduino
<b> Module description:</b> <br> 1. The module uses genuine quality relay, normally open interfaces Maximum load: AC 250V/10A, DC 30V/10A; <br> 2. Using SMD optocoupler isolation, driving ability, stable performance; trigger current 5mA; <br> 3. The module Operating voltage 12V; <br> 4. The module can be high or low by a jumper setting trigger; <br> 5. Fault-tolerant design, even if the control line is broken, the relay will not operate; <br> 6. The power indicator (green), the relay status indicator (red) <br> 7. The interface design of human nature, all interfaces are available through a direct connection terminal leads, very convenient <br> 8. Module size: 73mm*50mm*17mm (L*W*H) <br> <br> <b>Module interface:</b> <br> 1. DC+: positive power supply (VCC) <br> 2. DC-: negative power supply (GND) <br> 3. IN1,IN2,IN3,IN4: can be high or low level control relay <br> S1,S2,S3,S4, HIGHT OR LOW LEVER <br> <br> <b>Relay outputs:</b> <br>1. NO1,2,3,4: normally open relay interface <br> 2. COM1,2,3,4: Common Interface Relays <br> 3. NC1,2,3,4: normally closed relay interface <br> <br> <b>High and low level trigger options:</b> <br> It is low level trigger when jumper connect to LOW pin <br> It is high level trigger when jumper connect to HIGH pin <br> <br> <br> <b>Package:</b> <br> 100% Brand New <br> 1*12V 4CH relay module <br> <br> <b>Worry-free Warranty:</b> <br> 12 months worry-free product guarantee