ITEM NAME:5V USB Relay 1 Channel Programmable Computer Control For Smart Home US Ship B8M4 5V USB Relay 1 Channel Programmable Computer Control For Smart Home US Ship B8M4 This is a 100% Brand New and high quality USB Relay. This USB controlled relay Board with 1 channel is used the HID technology,so there is no need to install any driver in windows system It's convenient and very easy to use. This module is ideal for : 1. Robotics Control 2. Home automation 3. Controller power supply 4. Control doors and windows via windows system Specification: Relay Type: 5V Relay Contact Type:NC/ COM/ NO Input Current:greater than equal 300mA Input Voltage DC 5V package include:1 x Relay Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.
