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Air Humidity Meter THD 50
he air humidity meter is the ideal measuring device to check the climatic conditions in, for example, warehouses, production halls or greenhouses. The thermo-hygrometer can measure the ambient temperature and humidity. Temperatures between -20 ... 60 °C (-4 ... 140 °F) can be measured reliably and quickly by the thermo-hygrometer. In addition, the dew point and wet bulb temperature is calculated and displayed by the thermo-hygrometer. In addition, any type K thermocouple can be connected to the thermo-hygrometer in a temperature range of -100 ... 1372 °C (-148 ... 2501 °F). As soon as the connected thermocouple has been recognized, the temperature display automatically switches from the thermo-hygrometer to the thermocouple.

Measured values ​​can be recorded with the data logger function of the air humidity meter. The large memory of 32,000 measuring points in the thermo-hygrometer allows recording of measured values ​​over a long period of time. After data logging, all logged measuring points can be read out and analyzed via the micro-USB interface of the thermo-hygrometer and the free software. The data logged by the thermo-hygrometer can be exported in CSV file format for further processing.

A 3.7 V Li-ion battery is installed in the air humidity meter to enable mobile use. This battery can be recharged via the micro-USB interface on the thermo-hygrometer.
 
 
  1. Measuring range -20 ... 60 °C / -4 ... 140 °F
  2. Temperature, humidity, dew point
  3. Backlit LC display
  4. Micro USB interface
  5. Rechargeable battery
  6. Data memory for 32,000 readings
  7. Wet bulb temperature
  8. Optionally with ISO calibration certificate

Air Humidity Meter THD 50

  • Air temperature  
    Measuring range -20 … 60 °C（-4 … 140 °F）
    Resolution 0.01 °C/°F
    Accuracy ±0.5 °C @ 0 … 45 °C，±1.0 °C
       in remaining range
      ±1.0 °F @ 32 … 113 °F，±2.0 °F
       in remaining range
    Measuring rate 3 Hz
       
    Relative humidity  
    Measuring range 0 … 100 % RH
    Resolution 0.1 % RH
    Accuracy ±2.2 % RH (10 … 90 % RH)
      @ 23 °C (73.4 °F)
      ±3.2 % RH (<10，>90 % RH)
       @23 °C (73.4 °F)
    Response time <10 s (90 % RH, 25 °C (77 °F), with no wind)
       
    Thermoelement  
    Sensor type Thermoelement Type K
    Measuring range -100 … 1372 °C（-148 … 2501 °F）
    Resolution 0.01 °C/°F, 0.1 °C/°F, 1 °C/°F
    Accuracy ±(1 % ±1 °C)
       
    Calculated values  
    Wet bulb temperature   -20 … 60 °C （-4 … 140 °F）
    Dew point temperature -50 … 60 °C （-58 … 140 °F）
       
    Further specifications  
    Internal memory 99 measuring points
      (redundant, only readable on the measuring device)
      32,000 measuring points
      (only readable on the PC)
    Power supply 3.7 V Li-ion battery
    Operating conditions 0 … 40 °C (32 … 104 °F) <80 % RH,
      non-condensing
    Storage conditions -10 … 60 °C (14 … 140 °F) <80 % RH,
      non-condensing
    Dimensions 162 mm x 88 mm x 32 mm / 6.3 x 3.4 x 1.2"
    Weight 248 g / 8.74 oz
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