Choosing the Best Gann Moisture Meter Kit for the Job

Moisture problems can compromise structural integrity, indoor air quality, and even occupant health. Whether you're drying a home after a flood, checking timber framing, or assessing concrete slabs before installing flooring, accurate moisture measurement is crucial. Among professional-grade tools, Gann moisture meters (pronounced gun) are renowned for precision, durability, and versatility — making them a trusted choice across the restoration and building industries.

This guide breaks down our range of Gann Moisture Meter Kits available by showing you what’s inside, how they measure, and which kit suits different applications.

Why Choose Gann Moisture Meters?

• German Engineering & Accuracy – Trusted by professionals worldwide for over 50 years.
• Modular Design – Many Gann moisture meters feature interchangeable probes, electrodes, and sensors, allowing one device to adapt to multiple materials and measurement types.
• Multi-Material Capability – Concrete, timber, gyprock, brick, stone, and more.
• Durability & Longevity – Instruments are built to last, often staying in service for decades with proper maintenance.
• Professional-Grade Calibration – All meters are factory-calibrated and serviceable, maintaining performance over years of use.

Understanding Moisture Measurement Scales

Before diving into the kits, it’s important to know how you can use moisture meters measure and display results.

1. Relative Scale – Compares moisture levels between wet and dry materials without giving an absolute value. Best for monitoring changes over time or comparing areas.
2. Equivalent Scale – Using another moisture test to get an equivalent moisture reading. (e.g., testing a jarrah timber floor with no jarrah timber setting in your moisture meter, using another timber setting to measure unaffected and affected areas to get a timber equivalent for timber moisture equivalent) into an estimated moisture percentage for another similar material.
3. Absolute Scale – Provides an exact measurement of moisture content, when moisture meter is calibrated to the exact material. This is critical for compliance, scientific analysis, and sensitive materials.

Gann 3-in-1 Kit (Kit 3) – Versatile Entry-Level Professional Kit

Best for: General restoration and construction monitoring, non-invasive scanning, and timber spot checks.

Includes:

• BL Compact B2 Structural Moisture Meter
• BL Compact TF-IR 2 Climate & Infrared Thermometer
• BL H 40 Wood Moisture Meter (7 SG settings)
• M 18 Ram-In Electrode + pins (40mm & 60mm)
• M 20 Drive-In Electrode + pins (16mm & 23mm)
• Insulated pins, measuring caps, cables, and transport case.

Strengths:

• Covers both building materials and timber
• Combines structural moisture, timber moisture, and climate measurement in one kit
• Great portability

Limitations:

• Limited invasive depth options compared to more advanced kits
• No advanced humidity probes for in-depth building diagnostics

Gann Timber Kit (Kit 2) – Specialist for Wood & Timber Work

Best for: Timber specialists, joiners, and restoration techs dealing with structural wood.

Includes:

• BL UNI 11 Multifunctional Device
• BL A Plus Wood Moisture Meter (Specific Gravity settings)
• B 55 BL Sensor for non-invasive scanning
• TF-IR BL Sensor for temp/infrared measurement
• Full set of ram-in and drive-in electrodes + pins
• Insulated pins, measuring caps, cables, and transport case.

Strengths:

• Absolute moisture readings for timber
• Specific Gravity adjustment for multiple timber types
• Climate data integration for drying monitoring

Limitations:

• Limited invasive options for masonry and concrete
• Not optimised for in-depth hygrometer measurements in buildings

Gann Building Kit (Kit 4) – All-Rounder for Restoration & Building Diagnostics

Best for: Restoration professionals, building inspectors, and contractors dealing with mixed material assessments.

Includes:

• BL UNI 11 + BL E Multifunctional Devices
• B 55 BL & TF-IR BL sensors
• Wide range of electrodes — including stick-in, flat, and brush
• Ram-in & drive-in electrodes with full pin sets
• Contact paste, cables, and transport case.

Strengths:

• Broadest application range short of CH17
• Can measure timber, masonry, concrete, and insulation
• Handles both absolute and equivalent scales

Limitations:

• No advanced timber presets compared to CH17
• BLE no temperature settings for timber
• Has only 2 specific gravity settings for timber

Gann Expert CH17 Kit – Top-Tier for Complex Diagnostics

Best for: Experienced restoration professionals, building scientists, and specialists needing the widest range of invasive/non-invasive measurement options.

Includes:

• CH 17 Multifunctional Device
• B 55 BL & TF-IR BL Sensors
• M 18 Ram-In Electrode + full pin set
• M 6 & M 20 electrode sets (flat, stick-in, brush)
• 16 K-25 P plug-in humidity probe
• Contact paste, multiple connecting cables, and high-capacity transport case.

Strengths:

• Over 100 timber material presets
• Absolute, relative, and equivalent readings across multiple building materials
• Advanced probes for humidity, surface temperature, and deep moisture

Limitations:

• Premium pricing reflects its professional-only focus
• Overkill for small-scale jobs

Side-by-Side Comparison Table

How to Choose the Right Gann Kit

• Occasional moisture checks + portability needed? → Go for the 3-in-1 Kit.
• Mostly timber, with precision wood settings? → The Timber Kit meets expectations perfectly.
• Mixed building materials + restoration work? → Building Kit offers the most versatility without going full expert.
• Complex diagnostics, compliance reports, or scientific accuracy? → Only the Expert CH17 will do.

A moisture meter is only as good as its measurement range, accuracy, and adaptability. Gann electronic moisture meter kits are designed so you can start simple and scale up. For more information and training, see the videos of these awesome tools on the product page or reach out to our friendly team to discuss further.