Tramex Long Narrow RH Probe RHP-NW-B 260mm (4mm Ø) Hygro-i2 Probe

The Tramex RHP-NW-B Long Narrow RH Probe is a 10.25" (260mm) Hygro-i2 probe designed for accessing deep or restricted areas within building structures.

Its slim 4mm diameter allows it to take accurate readings in tight spaces such as wall cavities, behind finishes, and between tiles, where standard probes cannot reach.

Key Benefits

• Access deep cavities and confined spaces
• Measure RH conditions where standard probes cannot reach
• Fast response for efficient on-site diagnostics
• High accuracy across full humidity range
• Reusable design reduces long-term cost

Applications / Use Cases

• Wall cavity and structural moisture assessment
• Between tiles and narrow gaps
• Deep building envelope inspections
• Water damage restoration diagnostics
• Indoor environmental monitoring

Features

• 260mm (10.25") probe length for deep access
• 4mm narrow diameter for tight spaces
• Measures relative humidity, temperature, dew point, and humidity ratio
• Fast acclimation and temperature response
• Durable, reusable probe construction
• Designed for use with CMEX5, MEX5, and DL-RHTX systems
• Suitable for in-situ and ambient testing

Why Choose This Product

The RHP-NW-B is designed for situations where access is limited. Its long, narrow design makes it ideal for deep cavity inspections and detailed moisture investigations, giving professionals the ability to test areas that would otherwise be inaccessible.

INCLUDED

• Long Narrow RH Probe – 260mm

Specifications

General

• Brand: Tramex
• Model: RHP-NW-B
• Product Type: Relative humidity probe

Compatibility

• CMEX5
• MEX5
• DL-RHTX Feedback Datalogger

Measurement Capabilities

• Relative humidity
• Temperature
• Dew point
• Humidity ratio (grains per pound)

Measurement Ranges

• Relative Humidity: 0 – 100% RH
• Temperature: -20°C to 70°C

Sensor Specs

• RH Accuracy: ±2.0% RH @ 25°C
• Resolution: 0.1% RH
• Drift: <0.25% RH per year
• Temperature Accuracy: ±0.1°C
• Sensor protection: PTFE film for dust and water resistance

Physical Specs

• Length: 260mm (10.25")
• Diameter: 4mm

Differentiation

• Long, narrow design for deep and restricted access
• Ideal for cavity and behind-surface testing
• More specialised than standard RH probes
• Designed for detailed diagnostic work