Compact 4-digit Timer DIY Kit DIY Digital Rotation LED Electronic Clock Kit Learning Board Temperature Date Time Display DS1302

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