This product is retired, please consider our Grove - RTC as your alternative choice.
Any time you want to know what time it is. If I have missed the dating, or if it is the mealtime for my three months child. The RTC module can provide you a real-time clock. You can make the controller to ask the module: hi,buddy, what time it is. At the same time, Donot forget to install a small coin cell which can serve you for more than six mouths.
Note: This module is not compatible with any other Xadow version 2 or RePhone modules.
Xadow RTC Eagle File
RTC DS1307 Datasheet