DAOKI 5 PCS DIY DS3231 Precision RTC Clock Memory Module for Arduino Raspberry Pi[Product Information]- NOTE: THIS ITEM COMES WITHOUT BATTERY.
- Module itself can adapt 3.3V and 5V systems without level conversion.
- Within -40 ° C to +85 ° C temperature range， timing accuracy is maintained at ± 5ppm (± 0.432 sec / day).
- Device package and function compatible with the DS3231.
- Complete clock functions include seconds， minutes， hours， day， date， month and year timing， and provide valid to 2100.
