Clock Module, 4 Pcs set DS3231 High Precision RTC Module Real Time Memory Hwclock for Raspberry Pi With Battery

[Parameter] Temperature range from -40 ° C to +85 ° C, precision of synchronization maintained at ± 5 ppm (± 0.432 sec / day). Output of 1 Hz and 32,768 kHz. Precision of ± 3 digital temperature sensors. [Low Power Consumption] The module of real-time clock DS3231 maintains the characteristics of low power consumption, the battery is included, it will save energy cost. [Time Compensation] The complete functions of the calendar of clock including seconds, minutes, hours, day, date, month and year, provided valid until the year 2100 of compensation this year [Adaptation] The module itself can adapt to systems of 3.3 V and 5 V. [Quality Guarantee] The quality of our products is Guaranteed and can be used without hesitation. It is held any questions during use, do not hesitate to contact us.