PCE-THB 40 is a digital thermometer-hygrometer-barometer with data recording functionality. This compact yet robust data logger detects ambient temperature, relative humidity and atmospheric or barometric pressure. Measurement values are displayed in real time on the large LCD screen and saved to the included SD card as a Microsoft Excel-compatible .XLS file for seamless transfer to a PC or portable computer. Data can also be transferred via an optional USB data cable complete with PC-compatible software (SOFT-LUT-US) for live visualization. Measurement quota can be freely adjusted, with data captured every 5, 10, 30, 60, 120, 300 or 600 seconds, or automatically when there is an alteration of ±1°, ±1% RH or ±1 hPa.