Pin-style meters usually have two metal pins that must physically penetrate a surface in order to take a moisture reading.
Kimo's HM 50 Pin Moisture Meter provides accurate humidity percentage calculations and measurements of bricks, wood, plaster, and concrete.
Easy to use
Hold function
Compatible with wood (9 to 90%), plaster (0 to 15%), and bricks and concrete (0 to 15%)
Auto shut-off: 20 minutes
Supplied with 2 pin sets
Adjustment certificate