Meters -1 Channel Low Level Optocouple Isolation Driver Relay Module 3v Board Highlights Generic Brand 1 Channel Low Level Optocouple Isolation Driver Relay Module 3v Board Description: Used in automatic control circuits, an automatic switch that uses small voltage to control high voltage, automatic adjustment, safety protection, switch circuit and so on. Output signal indicator light indication. Signal input port can connect microcontroller IO port, high level signal. Dual power selection design anti-interference ability is strong, photoelectric isolation protection of high reliability. Diode current protection. Can control 10A 250VAC, 10A 30VDC load. Long relay life can absorb 100000 times continuously. The external connection uses the rotation crimp terminal, make the connection more firm. With fixed installation hole, convenient installation. Specification: Size: Approx. 70 x 17 x 20mm / 2.8 x 0.7 x 0.78inch Working Voltage: DC 3V Package Include: 1 Piece 1 Layer Optocoupler Isolation Module