ITEM NAME:Recorder Data Logger Module Logging Shield XD-204 For Arduino UNO SD Card X V4W1 Recorder Data Logger Module Logging Shield XD-204 For Arduino UNO SD Card X V4W1 100% Brand new and high quality. SD Card FAT16 or FAT32 Format and Interface Card. 3.3v level shifter circuitry prevents damage to your SD card Real time Clock (RTC) holding time, even if there is no connection For Arduino. Battery backup takes many years. With the sample code and Library and RTC and SD, let you quickly get started.Soldering joint forming area, circuit or sensor. The onboard controller is a 3.3V voltage reference and reliable operation of the SD card, the need for high-power operation. Suit For Arduino ADK,For duemilanove,For diecimila For Leonardo / R3 or greater higher.For ADK giant R2 / low or not supported. Battery: CR1220 3V (not included) colour: blue Material: PC+ metal Package Contents: 1Pcs * Data Logger Module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.