2-Channel Relay interface board
This module can be used with Arduino Special Sensor Shield V4.0
Brand new and high quality.
Standard interface that can be controlled directly by microcontroller (Arduino , 8051, AVR, PIC, DSP, ARM)]
Wide range of controllable voltages.
Being able to control high load current, which can reach 250V, 6A or 125V.
With a normally-open (NO) contact and a normally-closed (NC) contact.
Around the board with 4 mounting holes, easy installation and fixing
It has a common end, a beginning, a closed-end.

2-Channel 12V Relay Module is a interface board and can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM and so on. With digital outputs to control larger loads and devices like AC or DC Motors, electromagnets, solenoids, and incandescent light bulbs. This module is designed to be integrated with 2 relays that it is capable of control 2 relays. The relay shield use high-quality relay with rated load 10/250VAC,10A/125VAC,10A/28VDC