Feature 140 C to +85 C temperature range, timing accuracy kept at 5ppm ( 0.432 sec / day) 2The module itself can be adapted to 3.3 V and 5 V system 3Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing , provide valid until the year 2100 leap year compensation 41 Hz and 32.768 kHz output 5Accuracy of 3 digital temperature sensorSpecification Features: -40 C to +85 C temperature range, timing accuracy kept at 5ppm ( 0.432 sec / day) The module itself can be adapted to 3.3 V and 5 V system Complete clock calendar functions include seconds, minutes, hours, day, date, month and year timing , provide valid until the year 2100 leap year compensation 1 Hz and 32.768 kHz output RTC Clock Module has the characteristic of low power consumption Accuracy of 3 digital temperature sensor Specifications: Temperature range: - 40~85 Weight: 2g Package included: 4 x RTC Clock Module( battery are included) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }