12V One 1 Channel Relay Module Optocouple Board Shield for PIC AVR Arduino

Feature: Onboard EL817 optocoupler , strong anti-jamming capability with optical isolationOnboard 12V, 10A/250VAC, 10A/30VDC relay Relay life long continuous pull 100,000 timesThe module can be directly and microcontroller I / O link , with an output signal indicatingThe module has a freewheeling diode protection , short response timePCB dimensions : 47.0 (mm) x17.7 (mm) Package Included: 1PCS*12V One 1 Channel Relay Module Optocouple Board Shield For PIC AVR DSP ARM MCU