1 x DS3231 Real Time Clock RTC Module for Raspberry Pi Arduino 3.3V/5V Battery

Product Features:   Timing accuracy (in a plus or minus): ± 5ppm (± 0.432 sec / day) Power supply voltage: +2.3V to +5.5V  ±3℃ accuracy digital temperature sensor  To provide continuous battery backup Temperature range: -40 ℃ to +85 ℃  Low-power consumption Device package and function compatible with the DS3231 Complete clock calendar functions which include seconds, minutes, hours, date, month and year, provide valid until the year 2100 leap year compensation Two calendar alarm 1Hz and 32.768kHz output Reset button debounced input and output High-speed (400kHz) I2C serial bus   100% brand new and high quality. DS3231 Precision RTC Clock Memory Module for Arduino Raspberry Pi High timing accuracy, ± 5ppm (± 0.432 sec / day) ±3℃ accuracy digital temperature sensor  Device package and function compatible with the DS3231 Complete clock calendar functions and provide valid until the year 2100 leap year compensation Two calendar alarm Modules can adapt itself 3.3V and 5V systems without level conversion, super convenience.   Package included: 1  x  DS3231 Real Time Clock Module