SunFounder PCF8563 IIC I2C Real Time Clock RTC and DS18B20 Temperature Sensor Module for Arduino Raspberry Pi<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Integrates RTC PCF8563 and DS18B20 temperature sensor.</li><li>Provides battery backup for continuous timekeeping; Low power consumption.</li><li>Complete clock calendar functions include second， minute， hour， day， date， month and year timekeeping， which provides valid time until the year 2100 with leap year compensation.</li><li>Supports PCF8563 I2C output and DS18B20 digital output， so you just plug the ports into Raspberry Pi to use.</li><li>Working voltage: 3.3V; Dimensions: approx. 14*13*15mm/0.55*0.51*0.59’’.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/61FFNbdf2DL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51l72PaBG%2BL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51lXpAgcVXL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41fIeoeK0YL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51P0FHD%2BVpL.jpg" noproxy>