This is a 5V 1-Channel Relay interface board, able to control various appliances, and other equipments with large current. It can be controlled directly by Micro-controller (Arduino , 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic) . 

Features:

• New design 5V 1-Channel Relay interface board, and each one needs 15-20mA Driver Current
• Equipped with high-current relay, AC250V 3A ; DC30V 3A
• Standard interface that can be controlled directly by microcontroller ,such as Arduino , 8051, AVR, PIC, DSP, ARM and so on
• Contact independent wiring, safe and reliable
• Platform: the Arduino/ single chip microcomputer
• Port: digital quantity level
• Contact: 1 normally open contact + 1 normally closed contact
• Contact current: < 3 A
• Voltage: 5V
• Weight: 12g
• Size(L*W*H): Approx. 41*26*15mm/ 1.61*1.02*0.59inch

Package Included:

• 1 x Relay Module