Thermo-Hygrometer, -4 to 140°F (-20 to 60°C), 0-100%RH with NIST Calibration Certificate

This portable thermo-hygrometer measures and displays ambient temperature and relative humidity simultaneously. The R6001 features Datahold, Min/Max and Relative functions. This product includes a calibration certficate traceable to NIST (National Institute of Standards and Technology). Product Features; Temp./Humidity Range: -4 to 140°F(-20 to 60°C) / 0 to 100% RH; Dual LCD readout displays temperature and relative humidity; Data hold, Min/Max and Relative functions; Low battery indicator and auto shut-off; Includes battery and calibration certificate.