Charun Instruments - Model RC-4H -Humidity + Temperature Datalogger

Humidity Measuring Range of 0% ~ 99% RH, Temperature Measuring Range of -30° C ~ +60° C (with Internal Sensor), Temperature Measuring Range of -40° C ~ +85° C (with External Sensor), Humidity Accuracy ± 3% RH (25° C, 20% RH ~ 60% RH), ± 5% RH, Temperature Accuracy ± 1° C (-30° C ~ +60° C), ± 1.5° C, Resolution 0.1% RH, 0.1° C, Record capacity of 16000 points (Max), Record interval settable 10s ~ 24 hrs, Sensor NTC thermal resistor, PC interface with USB connection, Free PC interface software & USB Cable, Portable Datalogger.