Pin Less Moisture Meters In UgandaPin Less Moisture Meters in Uganda What You Should Know What is a Pin Less Moisture Meter? A pin less moisture meter (also called non invasive or surface moisture meter) measures moisture content without inserting pins into the material. Instead, it uses sensors (often electromagnetic or capacitance sensors) to scan a surface or near surface layer. That means no holes, less damage to surface materials (wood, flooring, drywall, finishes), and often