The SDL300 saves data to an SD card in Excel format. The metal vane can endure temperatures up to 158°F (70°C) and air velocity up to 6900ft/min. Dataloggers date and time stamp readings and store them on an SD card in Excel format for easy transfer to a PC. The data sample rate can be set anywhere between 1 and 3600 seconds. Stores 99 manual readings and 20M readings on a 2GB SD card. Type K/J thermocouple input for high-temperature measurements. The large (9999 count) LCD displays both air velocity and temperature. 2% velocity accuracy with low friction ball bearing vane wheel on 39" (1m) wire. Record/Recall MIN, MAX, Data Hold, Auto Power Off. Complete with 6 x AA batteries, SD card, metal vane sensor with 3.9ft (120cm) cable, and sturdy carrying bag.