Environmental Quality SD Card LoggerRecords air speed, ambient temperature, relative humidity, light and thermocouple temperature onto removable SD Cards. Includes a 4 parameter environmental probe, and also works with all of our standard Type J & K Thermocouple Probes. Records data onto standard SD memory cards (like a digital camera). The removable SD card is easy to transport and insert into a computers memory card slot or SD card reader. Uploads pre formatted data to Excel, without