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
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Extech MO257 Shown

Product Information
Datasheet 482 KB PDF
Manual 472 KB PDF
MO257 Movie
pdf helpPDF Help
Non-invasive moisture content measurements in wood/building materials
Ordering Information
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  • (1) Pouch Case
  • (3) AA Batteries
  • (1) Manual

*NOTE: Items ordered with optional NIST calibration will require
approximately 10 days to complete the certification.