Precision DS3231 Real Time Clock Module RTC DS3231 3.3V/5V for Raspberry Pi for arduino

Overview: 1. DS3231 high precision clock module for Raspberry Pi 2. the module can also be used for Arduino motherboard 3. The module itself can be adapted to 3.3 V and 5 V system, no level conversion, it is super convenient! Features: 1. to 40° to + 85° temperature range, timing accuracy in a plus or minus 5 PPM (+/- 0.432 SEC/day) 2. To provide continuous timing battery backup 3. Low power consumption 4. The device compatible with DS3231 encapsulation and function 5. Complete the clock calendar function including the second, minute, 6. Two calendar clock 7. 1 Hz and 32.768 kHz output 8. Reset the output and input button to tremble 9. High speed (400 KHZ) the I2C serial bus 10.+ 2.3 V to + 5.5 V power supply voltage 11.The accuracy of plus or minus 3° digital temperature sensor 12.- 40 ° to + 85° temperature range