Relay modules use low-level data signals to switch relays capable of handling loads up to 10 Amps. Ideal for devices like PIR detectors and other sensors that output low level signals that need to turn another device on or off. Great for use with Arduino and other microcontrollers. Onboard LED indicators light when a relay is switched. Convenient screw terminals for relay outputs. 0.1" header for voltage and signal input. Available in 1, 2 and 4 relay configurations.
