GainExpress

The GainExpress Pinless Moisture Meter is ideal for highlighting areas of elevated surface moisture in plaster and masonry, which can be consistent with rising damp. By comparing readings at different heights and locations, you can identify suspicious patterns. However, it does not diagnose the cause of damp on its own, so for serious concerns we recommend consulting a qualified surveyor who can interpret readings alongside visual inspection.

No. This is a pinless, non-destructive meter, so it uses a flat sensor plate rather than sharp pins. As long as the surface is reasonably flat and clean, it will not leave marks on paint, varnish, laminate or finished timber. It is particularly useful for landlords and homeowners who want to check for damp without leaving visible test holes.

Yes, you can use the wood mode to compare the relative moisture content of firewood. For consistency, split a log so you can test a freshly exposed surface, then press the sensor plate firmly against the flat face. While pin-type meters are sometimes preferred for very thick logs, this pinless meter gives a fast, non-destructive indication of whether your wood is comparatively dry or still quite wet.

You can use it to check moisture in outdoor timber such as decking, fences and sheds, provided the surface is reasonably flat and not saturated with standing water. Take readings when the surface is free from heavy rain and wipe away excess surface moisture first. The meter itself is not waterproof, so avoid using it in heavy rain and always store it indoors afterwards.

The numeric values are based on a relative moisture scale and will vary between materials. The most useful approach is to compare readings between known dry areas and suspect damp areas on the same material. For example, compare one section of plastered wall with another, or one timber joist with a nearby joist. The bar graph and any alarm threshold you set help highlight spots that are significantly higher than normal for that surface.