The SDL600 saves data to an SD card in Excel format. High precision (±1.4dB) fulfills ANSI and IEC 61672-1 Type 2 standards. The measurement range is 30 to 130 dB. Automatic or manual ranging. AC analog output to connect to an analyzer or recorder. Large, backlit LCD display. Stores 99 manual readings and 20M readings on a 2GB SD card. Dataloggers date and time stamp readings and store them on an SD card in Excel format for easy transfer to a PC. The sample rate can be set by the user between 1 and 3600 seconds. Includes Min/Max, Data Hold, and Auto Power Off capabilities. Comes with 6 AA batteries, an SD card, a wind screen, and a protective carrying case.