DS3231 Precision RTC Real Time Clock Memory Module For 3.3V 5V

DS3231 Precision RTC Real Time Clock Memory Module For 3.3V 5V. High precision DS3231 clock module for Raspberry Pi / Arduino. Reset output and button debounce input. Fit for 3.3V and 5V system. No need level conversion. Low power consumption. Two calendar alarm clocks.. Condition:： New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable). If the item comes direct from a manufacturer, it may be delivered in non-retail packaging, such as a plain or unprinted box or plastic bag. See the seller's listing for full details. See all condition definitions ： Brand: ： Unbranded ， Main Colour: ： Black： MPN: ： Does Not Apply ， Material: ： Plastic： Country/Region of Manufacture: ： China ， Designer/Brand: ： Unbranded： Unit Size: ： as described ， UPC: ： Does not apply： ISBN: ： Does not apply ， EAN: ： Does not apply ， 。