HD3114B - Precision Barometer Temperature, humidity and pressure handheld data logger. Color graphic LCD display. Built-in precision barometric sensor. Measuring range 0…1350 hPa. Accuracy ± 0.1 hPa @ 23 °C between 500 and 1200 hPa. One input for Pt100 temperature probes, combined temperature and relative humidity probes, TP704/TP705 pressure probes with PP471 module. Direct logging on SD memory card. USB port for connection to PC or external power supply unit (optional). RS232C output for serial printer connection.