DS3231 High Precision Real Time Clock Module FR-4 RTC Clock Board Memory Plate with 450mAh Button Battery for Raspberry Pi

Complete clock calendar functions including seconds minutes hours day of the week date month and year and provide leap year compensation valid to 2100 years. Temperature range is -40 to +85 degrees Celsius.Timing accuracy is±5ppm. (±0.432 seconds/day) The module itself can adapt to 3.3V and 5V systems without level conversion. High-speed (400kHz) I2C serial bus 16-pin SO (300mil) package. Reset output and button debounce input two calendar clock design. Item type: Real Time Clock Module Material: FR-4 Color: as shown Battery:450mAh button battery(included) Power voltage:2.3V to +5.5V Output:1Hz-32.768kHz Temperature range:-40 to +85 degrees Celsius Timing accuracy:±5ppm (±0.432 seconds/day) Item size: 1.3*1.3*1.3cm/0.51*0.51*0.51inch(L*W*H) Weight: 2g/0.07oz Package Including .