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  • Humidity / Temperature Transmitters
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    Calibration Services
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    Series 657
    Dual Channel Design for Simultaneous 4-20 mA Output Signals Relative Humidity/Temperature Transmitter has a stainless steel probe that can easily mounted to most ductwork. Applications include clean room monitoring, HVAC, and building control.
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    Series RH-R
    Remote Mount, Field Replaceable Sensor Filter, Up to 16' Cable Humidity/Temperature Transmitter is an ideal transmitter for applications where space is limited. Ideal for environmental chambers, rubber bladder burst detection, and air handler applications.
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    Series RHP
    Passive Temperature Outputs, Sintered Filter Options Humidity/Temperature Transmitter combine voltage or current humidity transmitter output with a passive temperature thermistor or RTD output.
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    Series WHT
    Compact Housing, Sintered Filter Weather-Resistant Humidity/Temperature Transmitter is designed to withstand elements. Ideal for measuring outside air temperature and humidity levels for air handling economizer applications.
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    Series HHT
    Intrinsically Safe or Explosion-Proof Models Hazardous Area Humidity/Temperature Transmitter takes accurate measurements in the harshest environments. Sensor should be replaced annually or sooner depending on conditions.
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    Series WHP
    Transmits up to 100 Feet, Battery Operated Wireless Humidity/Temperature Sensor provides flexibility in locating sensors and reduces wiring cost. The duct mount and outside air mount sensors come standard.
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    Series RHRS
    6 or 10 Plate Design, Integral Pipe Mounting Kit Outside Air Humidity Radiation Shield protects outside air humidity transmitters from rain and radiated heat. Applications include weather stations and building outside air reference.
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    Series RHP-E/N
    Optional LCD Display Wall Mount Humidity/Temperature/Dew Point Transmitter is the most versatile with a stylish housing that is well vented to improve measurement accuracy.
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    Series RHPLC
    2% or 3% Humidity Sensor, Passive Temperature Outputs A compact economical sensor for the building automation market space.
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    • Most Popular
    • Questions
    • Videos

    Most Popular

    Series RHP
    Series RHP-E/N
    Series RHRS
    Series WHT

    Questions

    Question
    How many wires do the RTD versions of the TE Series Temperature Sensors have?
    Answer
    The TE Series Temperature Sensors are all two-wire sensors for both the thermistors and RTD’s.
    Related
    Series TE
    Series TE-A
    Series TE-OND/TE-RND/TE-OSA
    Series WHT
    Series TE-WSS
    Question
    What purpose does the sintered filter perform on the RHP transmitter and does its use preclude adding the LCD option? Is it recommended when transmitter is located just after blower but before cooling coil?
    Answer
    The sintered filter is recommended in applications where you expect to be close to the temperature limit of the RHP (near 140°F) because the sintered filter has higher temperature resistance than the standard fiber membrane filter. You can order the sintered filter version with or without an LCD screen.
    Related
    Series RHP
    Question
    I'm looking for a dual temp. and humidity gauge for an 8" duct. I'm wanting to remote read the temp and humidity on the incoming and outgoing air to an ERV unit. The RHP-3M11-LCD was recommended to me, however, it is a direct read. What would be the correct instrument to remote read the temperature and humidity from a distance of 8 feet. The 8" duct is in the attic and I want to read the result in the down-stair hall. I don't want to record nor program the unit, just read the performance.
    Answer
    The sensor recommended would be the best option we have for sensing temperature and relative humidity for your application. We do not have any options with a remote display that could stretch as far as you are asking, nor are there any on the market to my knowledge. In every case, you would need to utilize a process output, in this case 4-20 mA, to transmit the readings to a remote display(s) which would accept the process signal(s). If you are just looking for a remote readout to go with the RHP sensor with no control functionality, then you could look at one of our panel meters, possibly the SPPM, DPMA, DPMW, or DPMP & DPML series panel meters. For assistance selecting an appropriate panel meter, please contact our technical support group at 219-879-8000.
    Related
    Series RH-R
    Series WHT
    Series RHP
    Series RHP-E/N
    Series HHT
    Question
    On the RHP series temp/humidity sensors, is it possible to get a model with a 0-10 V dew-point output and a 0-10 V temperature output? I need dew point output, and would prefer the temperature output to be configured as 0-10 V rather than one of the other formats. I can custom configure a model RHP-3W44, but I wasn't 100% sure that that model would be able to put out a dew point signal. Will it in fact do that?
    Answer
    I would recommend getting an RHP-3W22 instead of the RHP-3W44. This will give you just the 0-10V outputs instead of a combination 0-10V and 4-20 mA.
    Related
    Series RHP
    Question
    I purchased two of your RHP-2D11-LCD sensors. I am in need of the calibration values so I can convert the analog input values to the desired outputs (RH and temp). We have the sensors connected to an IoT system recording the analog data inputs to a portal.
    Answer
    0 to 100% RH. = 4-20 mA on the humidity side -40 to 140°F (-40 to 60°C). = 4-20 mA on the temp side.
    Related
    Series RHP

    Videos

    Liquid in your Housing? How to Prevent Conduit Condensation
    Series RHRS Outside Air Humidity Radiation Shield
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