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A moisture meter or a damp meter is a portable instrument designed for measuring the moisture levels in a range of building materials including wood, concrete, brick, and plasterboard. To learn more about moisture meters or for advice selecting the best type for your requirements, please see our [moisture meters guide](https://uk.rs-online.com/web/content/discovery/ideas-and-advice/moisture-meters-guide).

### Why do we need moisture meters?

Early detection of moisture or water damage is essential. Meters help in the prevention of mould growth and structural damage, both are costly to repair and can be detrimental to health and safety.

There are two main categories of moisture metres, Pin type or Pin-less type. Both are hand held and have a screen on the front to display readings. Meters are available in a digital form with a backlit LCD display or alternatively an analogue version with a needle scale. As the meters work in slightly different ways, selecting the best one for the job at hand is dependent on the application and the environment.

### Pin type

A pin-type moisture meter works by measuring the amount of electrical resistance between two points. Pin moisture meters have a pair of sharp metal pins at the top of the device. Once the metal pins are inserted into the material a small amount of electrical current is passed between the two spikes. As we all know water or moisture is a good conductor, so the higher the moisture content the lower the resistance value. The measurement is converted into a % of MC (moisture content) within the material.

### Pinless type

A pinless moisture meter works by detecting how waveforms are affected by the presence of moisture in a material. The non-destructive meter works best on a flat surface. Clever internal circuitry produces a signal that is sent out through a sensing area on the back of the device. The signal is emitted in the form of electromagnetic waves. The moisture content can be converted into a scalable format to provide a moisture content reading.

### Applications

**Property and construction**

Building inspectors use damp meters to help them identify potentially hidden hotspots behind plaster that can cause damage to structures and buildings from moisture build up.

**Flooring Contractors**

Being able to determine the best conditions for laying screed, concrete or wooden floors is crucial. Moisture content in materials and the relative humidity in the room must be carefully considered. Failure to do so can cause issues like distortion, cracking and buckling.

**Furniture makers and woodworking**

Wood naturally has a high moisture content, once dried by air or a kiln, meters are used to detect moisture content ensuring the material is dry enough to work with.

Moisture Meters can help support a healthy building by improving Air Quality



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Moisture Meter | Damp Meter | Damp Testers | RS

Moisture Meters

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Protimeter Moisture Meters | RS

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Digital Moisture Meters | RS

Accurately measure moisture in various materials using Testo moisture meters. Available with next-working-day delivery from RS Components.

Testo Moisture Meters | RS

<p>Celebrating a 60-year history of engineering excellence, Testo is a trusted choice for moisture meters. Assessing moisture content is an intuitive experience with Testo's ergonomic meters. Equipped with easy-to-read backlit displays, capable meters provide precise measurements across a range of building materials including concrete, plaster, and wood.</p><h2>How do moisture meters work?</h2><p>Moisture meters, also known as damp meters or detectors, measure the moisture content within a particular material. Two types exist:</p><ul><li>Pin-type meters feature small metallic pins, which penetrate the material to pass a current between them. Resistance to the current is proportional to the amount of moisture present and can be converted into a moisture reading.</li><li>Pinless-type meters use flat contacts which do not penetrate the material. These meters take a reading of electrical impedance in the material, converting the amount of opposition into a relative moisture measurement.</li></ul><h2>Why are moisture meters useful?</h2><p>Moisture meters serve many applications, depending on the materials they are capable of measuring. Agricultural workers often make use of moisture meters to measure water content in the soil, which is an important variable in farming practices. Construction workers use moisture meters to assess levels of moisture within ceilings and walls, which are particularly useful to identify ingress of dampness.</p><h2>Choosing a Testo moisture meter</h2><p>When choosing a Testo moisture meter, consider whether the structural integrity of the material must be retained. If so, opt for a pinless-type moisture meter.</p>

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Wood Moisture Meters | RS

<p>Wood moisture meters are electronic devices that measure the amount of moisture present in wood. They are used in a variety of applications, including woodworking, flooring installation, and building inspection.</p><h2>Why would you use a wood moisture meter?</h2><ul><li>Helps prevent mold and rot – these meters can detect excessive moisture in wood before it starts to cause damage</li><li>Ensuring good quality wood that does not contain a lot of moisture which can make it difficult to work with so you can avoid warping or cracking</li><li>Saving time and money - By identifying wood with high moisture content before it is used, you can avoid costly mistakes such as warping or cracking</li></ul><p>Wood moisture meters are therefore great tools to have for people who work with wood or are concerned about the quality and safety of their wood before they carry out any jobs.</p>

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FLIR Moisture Meters | RS

A moisture meter, also known as a damp meter, is a device that measures the moisture content within a material such as plasterboard, wood, brick, and concrete. It is usually a probe or sensor that gets inserted into the material being tested. The reading on the meter then indicates the current percentage of moisture present. With FLIR moisture meters you can help improve air quality and ensure a healthy building.<h2>Why do we need moisture meters?</h2>Water and high humidity can cause significant damage, but early detection can deter water damage. FLIR moisture meters can help detect damp to prevent mould growth and structural damage, which can pose health risks. By accurately measuring moisture levels, FLIR meters ultimately help in:<ul><li>Ensuring drywall and concrete are properly cured and dried before further work, supporting structural integrity.</li><li>Maximising efficiency in agriculture by determining storage conditions and optimal harvest times by measuring moisture within grains.</li><li>Monitoring and preventing water damage in materials like wood, concrete, and more.</li><li>Quality control in industries like agriculture and woodworking.</li><li>Maximise safety and reduce health risks caused my mould growth.</li></ul><h2>What is the difference between a pin type and pin-less type moisture meter?</h2>Both pin-type and pinless-type moisture meter are handheld and have a screen to display the readings. Moisture meters can be available in both a digital form with a backlit LCD display or in an analogue form with a needle scale. Although similar, the meters work in slightly different ways, so it is important to select the appropriate one dependent on the intended applications.<p>Pin-type moisture meters are great when you need higher accuracy and localised measurements at specific points on a material. When working with materials that are easily penetrable, pin-type meters can do the job. Applications such as woodworking or construction, pin-type moisture meters are useful for assessing the moisture content.</p>Pinless-type moisture meters, however, are commonly opted for when non-destructive testing is required, such as finished wood surfaces, carpeted floors, or painted walls. These meters are also quicker when screening for large-scale applications, where it can provide an average reading of a larger area without damaging the material. So if you are working with thicker materials, like concrete slabs, or need surface measurements, then pinless moisture meters are a great option.<h2>Applications</h2>Moisture meters can be used across a range of industries. Some common industries and applications that FLIR moisture meters can be used in include:<ul><li>Flooring installation</li><li>Property and construction</li><li>Building inspections</li><li>Furniture makers and woodworking</li><li>Environmental monitoring</li><li>Food processing</li><li>Paper and textile industry</li><li>Agriculture</li><li>Fire and flood restoration</li></ul>

Testo Moisture Meters

How do moisture meters work?

Why are moisture meters useful?

Choosing a Testo moisture meter

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