10PCS DS3231 Clock Module 3.3V / 5V High Accuracy For Raspberry Pi

Note The battery is not included Description This board can be used withboardModule itself can adapt 3 3V and 5V systems without level conversion Features 1 Within 40C to 85C temperature range timing accuracy is maintained at5ppm 0 432 sec day 2 Provide battery backup for continuous timing 3 Low power 4 Device package and function compatible with the DS3231 5 Complete clock functions include seconds minutes hours day date month and year timing and provide valid to 2100 6 Two calendar alarm 7 1Hz and 32 768kHz output 8 Reset button and button input 9 High speed 400kHz I2C serial bus 10 2 3 V to 5 5 V supply voltage 11 3C accuracy digital temperature sensor 12 40C to 85C operating temperature range 13 16 pin SO 300mil packagePackage included 10 x DS3231 Clock Module