ARCELI 4pcs DS3231 High Precision RTC Clock Memory Module for Raspberry Pi

• High precision: time accuracy at ± 5ppm (± 0.432 s / day). Accuracy of digital temperature sensor ± 3.
• USEFUL USE: The module itself can be adapted to 3.3V and 5V system, no level conversion, it is extremely practical.
• FUNCTION: Full clock calendar functions include seconds, minutes, hours, day, date, month and year, valid as leap year until year 2100.
• Low energy consumption: the RTC clock module has a low energy consumption of -40 °C to + 85 °C.

Description: The module itself can adapt to a 3.3V and 5V system, level conversion is not required, which is very convenient. Provide continuous timing battery backup; Full clock calendar function includes second, minute, time, week, date, month and year and provides leap year compensation up to 2100; Energy efficient. Clock with two calendars; Reset output and anti-shake input; Specification: In the temperature range from -40°C to +85°C, the timing accuracy is ¡À5 PPM (¡À0.432 sec/day); 1 Hz and 32.768 kHz output. High speed serial I2C bus (400KHZ); +2.3 V to +5.5 V supply voltage; The precision of the digital temperature sensor is 3 °C. Wiring diagram: Please refer to the last photo in the photo window above. Package includes: 4 x high-precision real-time clock RTC module