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
Pros
Cons
Wagner Meters Orion 940 Pinless Wood Moisture Meter with Backlight
This high-end meter is specifically designed for measuring moisture content in wood.
Features
Pros
Cons
General Tools Digital Moisture Meter MMD7NP – Humidity Sensor- Pinless and Non-Invasive
This versatile meter is accurate, affordable, and easy to use.
Features
Pros
Cons
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
Pros
Cons
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.