Mold Inspection Consulting and Remediation Organization
close menu

Enter your email address below and click “Reset Password”. We’ll email a link you can use to set a new password.

Return to Sign In

Extech MO257 Pinless Moisture Meter

The MO257 Pinless Moisture Meter is for non-invasive measurements in wood and other building materials with virtually no surface damage.

More info

Extech MO257 Pinless Moisture Meter
Roll over image to zoom Click image to expand
  • Extech MO257 Pinless Moisture Meter

The MO257 Pinless Moisture Meter is for non-invasive measurements in wood and other building materials with virtually no surface damage. Measurement depth from 0.78 in. (20mm) to 1.6 in. (40mm) below the surface. Two user-settable alarm levels with audible beeper and visual flashing RISK or WET indicators. Triple backlit LCD. 

Features:

  • 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
Specifications Range Accuracy
Moisture Range 0.0 to 100.0 Relative only
Measurement Depth 20 to 40mm (0.79 to 1.57")
Display type Backlit LCD
Display digits Three (3) numeric displays; each displaying from 0.0 to 100.0
Display icons HOLD, DRY, RISK, WET, MIN, MAX and low battery icon
Operating Temperature 4 to 43°C (40 to 110°F)
Operating Humidity 90%, 0-30°C (32-86°F), 75%, 30-40°C (86-104°F), 45%, 40-50°C (104-122°F)
Power Supply Three (3) 1.5V 'AAA' batteries
Auto Power Off (APO) After 30 minutes of inactivity
Dimensions 235 x 63 x 28mm (9.2 x 2.5 x 1.1")
Weight 218g (7.7oz)