Spesification : - SD card interface works with FAT16 or FAT32 formatted cards. 3.3v level shifter circuitry prevents damage to your SD card - Real time clock (RTC) keeps the time going even when the Arduino is unplugged. The battery backup lasts for years - Onboard 3.3v regulator is both a reliable reference voltage and also reliably runs SD cards that require a lot of power to run - Works with Arduino UNO, Duemilanove, Diecimila, Leonardo or ADK/Mega R3 or higher. ADK/Mega R2 or lower are not supported - Size:68x53x23mm(approx) Package includes: - Data Logger Module x 1 INfo tambahan : -http://wwwinstructablescom/id/Data-Logger-Pro...