REED R6040 Psychrometer Thermo-Hygrometer | Data Logging

REED R6040 Psychrometer Thermo-Hygrometer – Precision Humidity & Temperature Monitoring with Data Logging

The Challenge: When Environmental Conditions Can’t Be Guessed

Whether you’re commissioning an HVAC system, assessing water damage, monitoring a cool room, or ensuring museum-grade climate control, accurate humidity and temperature measurement isn’t optional – it’s essential. Guesswork leads to mould growth, equipment failures, spoiled goods, and compliance headaches.

Australian conditions make this particularly challenging. From humidity spikes during wet seasons to the bone-dry air of inland summers, environmental monitoring requires instrumentation that handles extremes while delivering readings you can trust and document.

The real problem? Many basic humidity meters lack the precision, logging capability, or professional features needed for compliance documentation and thorough site assessments. You need measurements you can record, review, and present with confidence.

Introducing the REED R6040 Psychrometer/Thermo-Hygrometer

The REED R6040 addresses these challenges with a purpose-built solution combining psychrometric measurement capabilities with comprehensive data logging. This isn’t a basic humidity pen – it’s a professional instrument designed for technicians who need accurate, documented environmental data.

Measuring relative humidity from 0 to 99.9% RH with ±2% accuracy, the R6040 simultaneously monitors ambient temperature (-20°C to +70°C) and calculates dew point and wet bulb values automatically. The backlit LCD displays temperature and humidity readings together, giving you instant environmental assessment at a glance.

What sets the R6040 apart is its documentation capability. With internal memory storing up to 999 reading groups and user-selectable sampling intervals from 1 second to nearly an hour, you can create comprehensive environmental profiles for any assessment. Whether you’re monitoring a drying chamber over several days or conducting spot checks across a facility, the R6040 captures it all.

Key Capabilities That Matter in the Field

Precision You Can Rely On

The R6040 delivers ±0.3°C temperature accuracy and ±2% RH humidity accuracy – specifications that meet professional monitoring requirements. The 0.1 resolution on all measurements means you’re capturing meaningful changes, not just ballpark figures. For dew point calculations, the instrument provides ±0.8°C accuracy across an impressive -78.2°C to +70°C range.

Comprehensive Data Logging

Environmental conditions change. Single-point readings rarely tell the full story. The R6040’s 999-group memory with adjustable sampling rates lets you build complete environmental profiles. Set sampling from 1 second for rapid changes to 59 minutes 59 seconds for extended monitoring periods. Manual recording is also available for spot-check documentation.

Visual Alarm System

Set high and low thresholds for proactive monitoring. The R6040’s visual alarm system uses colour-coded indicators – red for high alerts, blue for low – making it immediately obvious when conditions drift outside acceptable ranges. Perfect for monitoring critical environments where you can’t afford to miss threshold breaches.

PC Connectivity and Analysis

Download logged data via USB-C to the included Windows software for detailed analysis. Generate charts, review trends, and produce reports that document environmental conditions throughout your assessment period. The software supports Windows 7 through Windows 11, ensuring compatibility with most site laptops and office systems.

Practical Design for Fieldwork

At just 102 grams and 155mm long, the R6040 fits comfortably in a shirt pocket or tool pouch. The belt clip keeps it accessible during site work, while the backlit display ensures readability in poorly lit spaces like ceiling voids, basements, and mechanical rooms. Auto shut-off preserves battery life, while the low battery indicator prevents unexpected power loss during critical measurements.

Built for Australian Trade Applications

HVAC System Commissioning and Maintenance

Verify humidity control performance, assess air handling units, and document environmental conditions during system handover. The dual temperature/humidity display streamlines HVAC assessment work.

Building Inspection and Restoration

Track moisture conditions during water damage restoration, document drying progress over time, and provide clients with comprehensive environmental reports showing conditions before, during, and after remediation.

Cool Room and Storage Monitoring

Food distribution facilities, pharmaceutical storage, and temperature-controlled warehousing all require documented environmental monitoring. The R6040’s data logging capability creates the records needed for compliance and quality assurance.

Facility Management

Monitor HVAC performance across commercial buildings, identify problem areas with humidity issues, and maintain documented records of environmental conditions for maintenance planning and compliance reporting.

Specialist Environments

Museums, archives, galleries, laboratories, and other controlled environments benefit from the R6040’s precision monitoring and documentation capabilities. Track conditions to protect valuable collections or maintain experimental integrity.

What’s Included

Every REED R6040 ships with the essentials ready to go: the instrument itself, soft carrying case, USB cable for PC connectivity, and AAA batteries. Download the analysis software from REED’s website and you’re ready for professional environmental monitoring straight away.

Why Australian Professionals Trust REED Instruments

REED has built a reputation over more than 20 years for delivering reliable, accurate test equipment at sensible price points. The R6040 continues that tradition – professional-grade psychrometric measurement without the premium price tag of laboratory instruments.

Backed by a one-year warranty and supported by Australian-based service, the REED R6040 delivers the measurement confidence and documentation capability that trade professionals need.

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TECHNICAL SPECIFICATIONS TABLE