Series RH-R Humidity/Temperature Transmitter

Remote Mount, Field Replaceable Sensor Filter, Up to 16' Cable

The Series RH-R Humidity Transmitter is the ideal transmitter for those applications where space is limited. The compact sensor is protected by a removable filter. It can be mounted up to 16 feet away from the weatherproof base. The Series RH-R is ideal for environmental chambers, rubber bladder burst detection and air handler applications.

Product Applications

  • Process system monitoring
  • Environmental chambers
  • Air economizers

Models & Ordering

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Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

Build Your Custom Part. Use our Product Configurator

Model Description Usually Ships* Price Order
Ships: Next Day
Price: $309.00
Humidity Transmitter, 8' cable, current output. Next Day* $309.00 Order
Ships: Next Day
Price: $309.00
Humidity Transmitter, 16' cable, current output. Next Day* $309.00 Order

Can't find what you need? Build Your Custom Part. Use our Product Configurator


Dry clean air.
Relative Humidity Range:
0 to 100% RH.
Temperature Range:
-40 to 140°F (-40 to 60°C).
±2% @ 10 to 90%.
Temperature Limits:
-40 to 140°F (-40 to 60°C).
Storage Temperature:
-40 to 176°F (-40 to 80°C).
Compensated Temperature Range:
-4 to 140°F (-20 to 60°C).
Power Requirements:
10 to 35 VDC.
Output Signal:
4 to 20 mA loop powered.
Response Time:
Less than 15 s.
Electrical Connections:
Terminal block.
Conduit Connection:
1/2" NPT.
Process Connection:
1/2 NPSM.
Less than 1%/year.
RH Sensor:
Capacitance polymer.
Cable Length:
Up to 16'.
Housing Material:
Polycarbonate, aluminum enclosure.
Enclosure Rating:
NEMA 4X (IP66).


  • Cable lengths from 4 to 16´
  • Remote housing allows for flexibility sensing where space may be limited

Model Chart

EXAMPLE RHT R0 04 Series RHT-R004 Temperature/Humidity Transmitter, 4-20 mA output, with 4 ft. cable.
    Temperature/Humidity Transmitter
Humidity Transmitter
  Current 4-20 mA
Voltage 0-10 V (Unavailable after 6/3/2019)
4 Ft.
8 Ft.
12 Ft.
16 Ft.

Product Literature


Catalog Pages




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.
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.

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