The 5V 1Channel Relay Module control one 240V power appliance directly from 5V microcontrollers Compatible with Arduino, Raspberry pi, AVR, PIC, ARM, 8051, etc,

Features:

• With isolation groove in the control area and load area.
• With power and relay action indication, bright when connect and go off when disconnects.
• When there is a signal in signal input, public side and the common side will break over.
• It can be not only used as a microcontroller development board module but also as a home appliance control.
• With a  permanent open and close vents contact.
• It is convenient to connect with blue KF301 terminal access control cable.