Humidity Meters 

What is temperature/humidity?

temperature/humidity are measuring instruments that measure the temperature and humidity of air and gases. They are used for temperature/humidity control in a variety of locations, from monitoring indoor environments to manufacturing and storage process and testing facilities.

For more information on the basics of humidity and the differences between relative humidity, absolute humidity, and dew point temperature, please see "What is Humidity?".

Choosing temperature/humidity

When choosing temperature/humidity, it's important to consider not only the temperature and humidity range to be measured, but also the measurement location, operating environment, and sensor installation method. Depending on your application, you can choose from various types including insertable, separate, wall-mounted, handheld, and ventilated models.

Choose by usage method and shape.

Insertion Type Separate type Wall Mounting Type Handy type Ventilated type
Insertable temperature/humidity meter HN-CP Separate temperature/humidity meter HN-CJ Wall-mounted temperature/humidity HN-EK Handy temperature/humidity meter HN-EH Ventilation type temperature/humidity MH6
HN-CP□
Temperature: 0~80℃
Humidity: 0-100% rh
(Prevent dew condensation)
HN-CJ
Temperature: -40~180℃
Humidity: 0-100% rh
(Prevent dew condensation)
HN-EK□
Temperature: -10~55℃
Humidity: 0-100% rh
(Prevent dew condensation)
HN-EH□
Temperature: -20~70℃
Humidity: 5-95% rh
(Prevent dew condensation)
MH6
Temperature: 0~60℃
Humidity: 0-100% rh
(Prevent dew condensation)

For those who want to know more about the types of hygrometers and how to measure humidity.

There are various methods of measuring humidity, and the most suitable method depends on the measurement environment and the required accuracy. For the basics of humidity measurement and types of hygrometers, please see "What is Humidity?".

Product Line

HN-C Series

  • Models HN-C
    Temperature range -40 to 180°C (depending on model)
    Humidity Range 0~100%rh
    output Temperature, relative humidity or dew point temperature (depending on model)

    The HN-C series is a high-performance, highly reliable two-wire transmission type temperature/humidity that uses a humidity sensor development in-house and has a wide measurement range of 0 to 100%rh.

Separate type

Insertion Type

  • Models HN-CDA
    Humidity Range 0~100%rh
    output Relative humidity
    Explosion proof structure types Intrinsically safe explosion proof proof structure (IA)

    This is an intrinsically safe explosion proof for measuring humidity in explosion proof environments.

  • Models HN-Z
    detector measurement range (water vapor pressure) 0-10kPa, 0-20kPa, 0-30kPa, 0-50kPa or 0-100kPa)
    However, 0 to 100 kPa is only available without oxygen compensation function (depending on converter)
    Converter Output 4 to 20mA DC (load resistance within 500Ω)
    Or 0 to 10mV DC (output resistance 50Ω)

    This hygrometer high accuracy measures water vapor pressure in high temperature environments of 100°C or higher.

Wall Mounting Type

Ventilated type

  • Models MH6
    Temperature range 0~60℃
    Humidity Range Relative humidity: 0 to 100%rh or saturation: 0 to 48g/ m3
    *Please designate models when purchasing

    This is a thermal conduction type hygrometer/saturation differential meter for use in test rooms prone to high humidity and in environments for raising animals and plants.

Portable

  • Models HN-EH
    Temperature range Integrated type -10 to 45℃
    Probe type -20 to 70°C
    Humidity Range Relative humidity: 5 to 95%
    Dew point temperature: -35 to 55°C (standard type only)
    Display Temperature, relative humidity or dew point temperature (standard type only)

    A handy temperature/humidity for checking daily temperature and humidity.

  • Models MH500-SN0
    Satirability 0.1-62.1g/ m3
    Temperature range -10~45℃
    Humidity Range Relative humidity: 5 to 95%rh

    A handy saturation meter for managing the saturation deficit of the cultivation environment within horticultural facilities.

Dry bulb/Wet bulb

  • Models R220
    Temperature range 0~60℃
    Humidity Range 20-80%RH
    output Dry bulb terminal (DRY), wet bulb terminal (WET)

    The R220 series is a ventilated dry-bulb/ temperature/humidity-bulb temperature and humidity sensor. The two temperature detecting element for the dry bulb and wet bulb use platinum resistance thermometer.

  • Models R320
    Temperature range 0~100℃
    Humidity Range 20-100%RH
    output Dry bulb terminal (DRY), wet bulb terminal (WET)

    The R320 series is a wet-and-dry-bulb temperature/humidity sensor. Since it does not have a ventilation system, it is intended for measuring temperature/humidity in places such as ducts where the wind speed is always 3 m/s or more.

Humidity computation unit

  • Models HN-G
    Input Signal 4 to 20mA DC or Pt100, JPt100 3-wire (depending on input instrument)
    Output Signal Humidity/temperature…4 to 20mA DC (load resistance 600Ω or less)
    Display 5 digits

    The HN-G series is a temperature/humidity computation that display and output six different humidity unit by switching between them in combination with the HN-C series, R220/320 series, and HN-Z series.

If you have any problems with temperature control,
 please feel free to contact us.

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