A pinless Marine Meter designed for assessing and investigating moisture contained within fiberglass and wooden structures. Measures electronically to 1" depth. Pinless models are popular for marine surveys, appraisal, damage inspection and restoration as they offer a non-destructive assessment of moisture content. Get early warning of "Osmosis" before visible gel coat blistering. Reveal susceptibility to rot of interior wooden cabin fittings. Monitor hull dryness for repairs, dehumidification and painting. Use one meter for all fiberglass-composite and wood applications. Advanced electromagnetic sensing gives objective assessment of moisture content. Uses a 9V battery as it's long lasting power source. Reliable and affordable. Simply move the sensor form spot to spot to reveal abnormal areas which may require more detailed inspection. May be used to examine woodwork, such as shipwright carpentry without damage, to reveal the likelihood of rot. Because the meter readily detects water well below the surface of wood or fiberglass, even qualitative readings offer great value in locating moisture, hidden water pockets, and leaks.