3.3V I2C Pi RTC DS3231 Real Time Clock Module for Raspberry Pi 1 Pi 2 Pi 3 Pi Zero A+ B+

Descriptions: This is the best battery-backed real time clock (RTC) you can get that allows your Raspberry Pi project to keep track of time if the power is lost. Perfect for data-logging, clock-building, NTP servers, time-stamping, timers and alarms, etc. Equipped with a genuine DS3231 RTC, it works great with the Raspberry Pi and has native kernel support. Works perfectly with any Raspberry Pi (or similar single board linux computer) including the Pi 1, Pi 2, Pi 3, Pi Zero, A+, B+ etc. Notes: This product does not come with a CR1220 coin cell battery. Working voltage:3.3v Product Dimensions:2.2cm x2.41cm Will keep time for 5 years or more IIC Addresses:0X68 Package included: 1 x 3.3V I2C Pi RTC DS3231 Real Time Clock Module for Raspberry Pi 1 Pi 2 Pi 3 Pi Zero A+ B+