Extech Thermo Hygrometer with Data Logging EXTECH SDL500 The Extech SDL500 thermo hygrometer data logger records data on an SD card in Microsoft Excel reg format for easy transfer to a PC for analysis The user can manually store 99 readings or set the logger to automatically store up to 20M samples with date and time stamp at a user selected sample rate It measures relative humidity temperature dew point and wet bulb temperture Supplied with 6 x AA batteries SD card carrying case and
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