Moisture Meters

Pin-Less Type (Non-invasive)

Pin-less moisture meters use electromagnetic field technology to measure moisture without penetrating the material’s surface. They are useful when you want to avoid leaving visible marks on the material.

Pin-less type moisture meters use a radio frequency transceiver to generate relative readings within the material. They work much like a stud finder.

Though less invasive than its pin type counterpart, some pin-less type moisture meters can give false positive readings due to the presence of and reflective properties of steel studs behind wall cavities.

If surface moisture is present, you may receive false readings of moisture below the surface of the material. This makes the meters more suitable for delicate materials like paper and fabrics.

Dual-Function

There are some moisture meters that offer both Pin and Pin-Less measurement modes. These units can switch between the different modes, adding flexibility and accuracy during an inspection.

Choosing the right moisture meter requires some research since there are advantages and disadvantages of each type of moisture meter and a wide variety of prices. EMLab P&K Products has a full selection of moisture meters.

You will also find useful information including users’ manuals, high resolution images, technical specifications, and videos.

Moisture Meter Applications

Moisture meters find applications in various types of materials. Here are some common types:

Wood Moisture Meter

This moisture meter is used in woodworking and construction to measure the moisture content of wood. A wood moisture meter helps prevent issues like warping, cracking, and decay in wooden structures by ensuring that wood has an appropriate moisture level for its intended use.

Concrete Moisture Meter

A concrete moisture meter measures the moisture content in concrete structures before applying coatings, adhesives, or sealants. High moisture in concrete can lead to problems like mold growth, corrosion of reinforcement, and reduced structural integrity. Concrete moisture meters help in quality control and prevent potential issues.

Grain Moisture Meters

Farmers and grain storage facilities use grain moisture meters to assess the moisture content in harvested grains. Proper moisture levels are critical for preventing spoilage, fungal growth, and maintaining grain quality during storage.

Grain moisture meters are also utilized in food processing industries to ensure that grains used in the production of various food products meet quality standards.

Soil Moisture Meters

Soil moisture meters are used to measure the moisture level in soil. They help farmers and gardeners regulate irrigation, ensuring that plants receive an adequate but not excessive amount of water. This contributes to efficient water usage and plant health.

Paper Moisture Meters

Paper moisture meters are used to measure the moisture content in paper products. They are used in the paper manufacturing industry for quality control. Paper moisture meters ensure the quality of paper products by preventing issues like wrinkling, curling, and deterioration caused by improper moisture levels.

How to Use a Moisture Meter

How to use a moisture meter depends on which type you choose. Here’s a guide on how to use the main moisture meter types.

Pin-Type

Here is how you use the pin-type moisture meter.

Prepare the meter

Pin-type moisture meters come with two sharp pins that need to be inserted into the material being tested. Ensure the pins are clean and free of debris for accurate readings.

Prepare the Material

If you are testing wood, make sure the pins penetrate into the grain. For other materials like drywall or concrete, insert the pins into the material’s surface.

Insert the Pins

Gently insert the pins into the material until they make good contact. Be careful not to apply excessive force, especially in delicate materials.

Read the Display

The moisture meter will have a display indicating the moisture content as a percentage. Read and note the moisture level from the display. Various meters may have different scales, so refer to the user manual for interpretation.

Take Multiple Readings

For accurate results, take readings at different locations, especially if the material is large. This helps identify variations in moisture content.

Pin-less

Below is how to use the pin-less moisture meter.

Calibrate the Meter

Some pin-less meters may require calibration based on the material type. Follow the manufacturer’s instructions to calibrate the meter for accurate readings.

Scan the Surface

Pin-less moisture meters work by scanning the surface without penetrating it. Press the meter against the material’s surface. The meter emits electromagnetic waves to measure moisture content without causing damage.

Read the Display

The pin-less meter will display the moisture content on its screen. Again, refer to the user manual for interpretation and understand the acceptable moisture levels for the specific material.

Multiple Readings

Similar to pin-type meters, take readings at different locations on the material to account for potential variations in moisture content.

How to Choose the Right Moisture Meter

Choosing the right moisture meter depends on your specific needs and the materials you’ll be measuring. Here are some factors you can consider to help you select the appropriate moisture meter.

Consider the Material

Different moisture meters are designed for specific materials. Ensure the moisture meter you choose is suitable for the material you want to test.

Moisture Range

Consider the range of moisture levels you need to measure. Some meters are specialized for high or low moisture content, so choose one that matches the range of your application.

Calibration

Check if the moisture meter requires calibration and how easy it is to calibrate. Regular calibration ensures the accuracy of the readings.

Brand and Reviews

Research and choose a reputable brand. Read user reviews to get an idea of the experiences others have had with the specific moisture meter you are considering.

Ease of Use

Choose a moisture meter that is user-friendly and easy to operate. This is especially important if you don’t have much experience using such instruments.

Moisture Meter Brands and Models

Choosing the right moisture meter involves considering reputable brands that offer reliable and accurate products. Here are some popular moisture meter models from well-known brands that you can consider.

Protimeter BLD5365 Surveymaster Dual-Function Moisture Meter

This professional-grade meter is accurate, durable, and packed with features.

Features

• Dual-functionality with both pin and pin-less moisture measurement.
• Built-in infrared thermometer for surface temperature readings.
• Large backlit LCD display for easy readability.
• Bluetooth connectivity for data transfer and analysis.
• Selectable measuring depths for versatile applications.

Pros

• Versatile application with both pin and pin-less options.
• Infrared thermometer adds functionality.
• Bluetooth capability enhances data management.
• Selectable measuring depths for customized use.

Cons

• Higher cost compared to basic models.
• May have a steeper learning curve for beginners.

Wagner Meters Orion 940 Pinless Wood Moisture Meter with Backlight

This high-end meter is specifically designed for measuring moisture content in wood.

Features

• Pin-less technology for non-invasive moisture measurement.
• Backlit LCD display for visibility in low-light conditions.
• Deep depth of measurement for accurate readings in thicker materials.
• Data storage with downloadable reports.
• Specific gravity adjustments for wood species.

Pros

• Pin-less design avoids surface damage.
• Backlight enhances visibility in various environments.
• Deep depth measurement for versatility.
• Specific gravity adjustments for wood accuracy.

Cons

• Higher price point compared to basic models.
• Interface may be complex for some users.

General Tools Digital Moisture Meter MMD7NP – Humidity Sensor- Pinless and Non-Invasive

This versatile meter is accurate, affordable, and easy to use.

Features

• Pin-less technology for non-invasive moisture measurement.
• Built-in humidity sensor for additional environmental data.
• LCD display shows moisture content as a percentage.
• Auto-off function to conserve battery life.
• Ergonomic design for comfortable use.

Pros

• Cost-effective entry-level option.
• Humidity sensor provides additional environmental insight.
• Pin-less design is non-invasive and avoids surface damage.
• Auto-off function for battery conservation.

Cons

• Limited to pin-less measurements.
• Basic functionality compared to more advanced models.

Delmhorst BD-2100 6% to 40% Digital Pin Wood and Sheetrock Moisture Meter

This moisture meter is a reliable and versatile pin-type moisture meter that you can consider.

Features

• Pin-type meter with a selectable depth of penetration.
• Bright, easy-to-read digital display.
• Audible and visual alarms for quick moisture level identification.
• Built-in species correction for wood moisture measurements.
• Durable construction for field use.

Pros

• Accurate wood moisture measurement with species correction.
• Audible and visual alarms for immediate feedback.
• Durable construction for field use.
• Selectable depth of penetration for versatile use.

Cons

• Limited to pin-type measurements.
• Basic compared to more advanced models.

Bottom Line

Moisture meters prevent issues related to excessive moisture across various industries and applications. Understanding their types, applications, and how to use them can help you maintain quality standards and ensure the longevity of materials.

When selecting a moisture meter, be sure to consider your specific needs, budget, and the features that align with your application requirements. By assessing the models listed above, you can choose one that suits your needs. Still need more assistance choosing an ideal moisture meter? Don’t hesitate to get in touch with us today.