The 330 Air Humidity Meter is ideal for rapid measurement of ambient temperature and humidity. The precise Air Humidity Meter also allows the dew point (dew point temperature) to be determined. The Air Humidity Meter is equipped with an easy to read display and has a large memory (16,000 values) for recording the measured values.

Air Humidity Meter 330

  • Sensor Type Capacitance polymer film sensor / NTC
    Measuring Range  
    Relative Humidity 0 ... 100 %
    Temperature

    -20 ... +60 °C (-4 ... +140 °F)

    Dew Point Temperature -20 ... +60 °C (-4 ... +140 °F)
    Resolution  
    Temperature / Dew Point Temperature 0.1 °C (0.1 °F)
    Relative Moisture 0.1 % RH
    Accuracy (with 23 °C)  
    Sensor RP-32

    < 10 % RH, >90 % RH: ±4.0 % RH
    10 % RH.... 90 % RH: ±2.0 % RH
    -20 °C ... +60 °C (- 4 °F ... +140 °F): 
    ±0.8 °C (±1.5 °F)

    Sensor RP-31

    < 10 % RH, >90 % RH: ±.0 % RH
    10 % RH.... 90 % RH: ±3.0 % RH
    -15 °C ... +35 °C (- 60°F ... +95°F): 
    ±0.8 °C (±1.5 °F)
    < 15 °C (60 °F), >35 °C (95 °F): see graph

    Reaction time  
    Moisture 60 sec.
    Temperature 10 sec.
    Sensor Hysteresis < 1.5 % RH
    Temperature Coefficient 0.1 x (specific accuracy) per 1 °C (< 23 °C or > 23 °C)
    Sampling 2 times per second
    Battery 9 V battery
    Battery Life approx. 80 hours
    AC Adapter 9 V DC / 20 mA Min
    Operating Temperature 0 ... +40 °C (32 ... 104 °F)
    Operating Humidity 10 ... 90 % RH
    Storage Temperature -10 ... +60 °C
    Storage Humidity 10 ... 75 % RH
    Dimension  
    Gauge 185 x 65 x 36 mm
    Sensor RP-32: 15 x 94 mm
    RP-31: 15 x 82 mm
    Weight ca. 285 g

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