Epoch - Real-time Clock for Raspberry Pi

SKU SS-102990053
This is a breakout board for the DS3231 battery backed, temperature compensated, real time clock, designed for the Raspberry Pi. 
This precision, real time clock module plugs in to the Raspberry Pi GPIO interface. If your Pi is not connected to the Internet (Model B) or you have the Model A, this is the easiest way to keep it in time.
Easy to set up and includes a 2032 coin cell battery.