RHP-NW 10" Narrow RH Probe


The Tramex 10" (260mm) Narrow Wand Relative Humidity Probe has a 4mm diameter and is ideal for taking Relative Humidity Readings in small or narrow crevices, in between tiles, and for the evaluation of moisture conditions of wall and cavity structures within the building envelope. The probe measures Relative Humidity, Temperature, Dew Point temperature and grains per pound (grams per kilo) humidity ratio. This thin probe is ideal for use by Flood and Water Damage Restoration as well as Building Survey professionals. The Tramex Relative Humidity Probes are the most advanced, resilient and re-usable RH probes on the market today, allowing the user to evaluate moisture conditions within the building structure and can be used with Tramex digital meters and DataLoggers. The speed and accuracy of the Tramex Hygro-i2® probes set them apart from all other RH probes on the market.



  • 10" (260mm) Long Probe for Deep Cavity Inspection.
  • Fast Acclimation and Temperature response time.
  • Proven robustness, Durable and Reusable.
  • Best in class accuracy and reliable, even at high RH >90%.
  • Measures giving in situ relative humidity and ambient RH, temperature,  dew point temperature & grains per pound.
  • Relative Humidity range:  0% to 100%
  • Temperature Range:  -40°C to 80°C (-40°F to 176°F) 
  • Best temperature accuracy of +/-0ºC to 90 ºC (2º over 32ºF to 194ºF) 


Product Order Code: RHP-NW (with Din Connection for use with CMEX2 and MRH3)

Product Order Code: RHP-NWB (with Bayonet Connection for use with Feedback Datalogger RHTX)

Used in conjunction with the Tramex CMEX II or the Tramex MRH III non-destructive moisture meters, the probes provides measurements of relative humidity, temperature, dew point and grains per pound in structural materials such as concrete flooring and walls, as well as the ambient conditions within the building envelope, all shown simultaneously on one clear display. The probes are reusable and calibration checks can be carried out using the calibration check salts.


Range:                                                   0 → 100%RH

Accuracy: 0% → 99%RH ±2.0%RH (@ 77oF (25oC))

Resolution:                   0.1% over the complete range

Drift:                                             <0.25%RH per year


Range: -                 40oF → 257oF (-40oC → 125oC)

Accuracy:                    ±0.1oF Range 68oF → 140oF

                                   (±0.1 °C Range 20°C → 60°C)

Sensor Protection:           PTFE Film protects sensor

                                         opening from water & dust

Drift:                                 <0.04oF (0.03oC) per year

NIST traceable.
(National Institute of Standards and Technology)


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