5pcs 1 Channel Relay Module, 1 Channel DC 5V Relay Modules with Optocoupler, Compatible with Low or High Level Triggering and Arduino

✔【5V 1-Channel Relay Module】- This relay board provides a single relay controllable via any 5V digital output of your microcontroller. ✔【Key Features】- Normally Open Terminal Peak Load: AC 125-250V/10A, DC 28-30V/10A; Trigger Current: 5mA; Module Operating Voltage: 12V; 4 x 3.1mm Mounting Holes ✔【SMD Optocoupler Isolation & Jumper Set】- The isolation circuit protects the I/O port from the relay switching current. The module includes a jumper to set the device state to high or low depending on the signal state. It is equipped with screw terminals for the relay (NC, C, NO) and input; Coil +, coil - and trigger ✔【Wide Application】- This 5V relay board is compatible with ARM/PIC/AVR/MCU/Raspberry/CNC machines/PS4, etc. ✔【User-Friendly Interface Design】- All interfaces can be wired directly via the terminals. Fault-tolerant design; even if the control line is interrupted, the relay will not operate.