Arduino Compatible 5V Relay Board Analog Gateways Users can simply tap to

Users can simply tap to pair— no more scanning barcodes

high quality

or the included power adapter

SPROTEK 13 Piece Compression Crimp Tool Kit

Dual LED flash

Arduino Compatible 5V Relay Board Analog Gateways Users can simply tap toArduino Compatible These handy relay modules provide the easiest way to use your DuinoTECH to switch real world devices. Available in one, four and eight channel versions, these modules can switch up to 10A per channel. Includes back EMF protection and LEDs so you can easily see the state of the outputs. The four and eight channel versions even have optical isolation to protect your DuinoTECH. While the one channel version operates directly from 5V.