With this digital clock DIY kit， you can make a clock by yourself. With LED all around and red LED digital display， it looks very simple but stylish.<br><br><strong>Features:</strong><br>Automatically display time， temperature， date in turns， very convenient.<br>Red 4-digit LED display， can show you time and temperature.<br>Useful alarm function and hourly chime function(hourly chime between 08:00-22:00).<br>Temperature alarm function: when ambient temperature is higher/lower than setting temperature， it will alarm.<br>Don't need to set the time again if powered off.<br>The surrounding LED can display almost 10 types of modes.<br>Great digital clock DIY kit for electronics enthusiasts， easy to install.<br><br><strong>Instruction of Installation:</strong><br>https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-211-301/english.zip<br><br><strong>Notice:</strong><br>Power supply voltage: mini USB 5V， 3V button battery(not included) for clock chip on the board of the standby power supply.<br><br><strong>Specifications:</strong><br>Display: 4-digit LED<br>Power Supply: Mini USB 5V<br>PCB Size: 80 * 80 * 1.6mm / 3.15 * 3.15 * 0.06in<br>Package Size: Approx. 15 * 10 * 2.5cm / 5.9 * 3.94 * 0.98in<br>Package Weight: 81g / 2.86oz<br><br><strong>Package List:</strong><br>1 * Digital Clock Kit(Battery Not Included)