ONE Channel 5V Relay Module for Arduino

A relay is an electrically operated device. It has a control system and (also called input circuit or input contactor) and controlled system (also called output circuit or output cont actor). It is frequently used in automatic control circuit. To put it simply, it is an automatic switch to controlling a high-current circuit with a low-current signal. 
The features of 1-Channel Relay module are as follow:
1) Good in safety. In power system and high voltage system, the lower current can control the higher one.
2) 1-channel high voltage system output, meeting the needs of single channel control
3) Wide range of controllable voltage.
4) Being able to control high load current, which can reach 240V, 10A
5) With a normally-open (NO) contact and a normally-closed (NC) contacts

For More Details on PC Click here

For More Details on Portables Click here.