EXTECH MO257( PINLESS MOISTURE METER)

Relative pinless moisture reading for non-invasive measurement from 0.0 to 100.0 with 0.1 resolution
Multifunction backlit triple LCD display
Pinless measurement depth from 0.78 ” ( 20mm) to 1.6 ” ( 40mm) below the surface
High frequency sensing technology
Automatic Data Hold
Two adjustable alarm levels with audible beeper and visual ( flashing “ RISK” or “ WET” ) indicators
Automatic calibration ( in dry air) when meter is powered on
Low battery indication, Auto Power off
Complete with 3 AA batteries and pouch case