Extech Instruments MO257 Pinless Moisture Meter
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Extech Instruments MO257 Pinless Moisture Meter

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Non-Invasive Moisture Reader Leaves No Surface Damage After Measurements
  • Detects moisture up to 0.78" (20 mm) below the surface
  • 0 to 100 with 0.1 resolution
  • Easy to read backlit LCD display
  • Automatically calibrates when powered on
  • Adjustable visual and audible alarms when high risk situations are detected

Item #: 90230

Ships in 1 to 2 days

$209.99
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  • What's Included
  • With this pinless meter, you will be able to read moisture levels in various materials without creating holes with pins and probes. It uses high frequency sensing technology to detect water over 3/4 of an inch under the surface. When the meter is powered on in dry air, it automatically calibrates to ensure an accurate reading every time. Readings are clearly displayed on the backlit triple LCD display. Two alarm levels can be adjusted as need to provide audible and visual indicators when the meter determines a material to be wet or at risk. Three AA batteries (included) are required to power the meter. A low battery indicator informs you when battery level gets low. The meter will also automatically power off after a period of non-use to prolong battery life.


  • Specifications
    Manufacturer Extech Instruments
    Manufacturer Product No. MO257
    UPC 793950472276
    Moisture Range Range: 0 to 100
    Accuracy: Relative Only
    Measurement Depth 20 to 40mm (0.79 to 1.57")
    Display Type Backlit LCD
    Display Digits 3 numeric displays;each displaying from 0 to 100
    Display Icons HOLD, DRY, RISK, WET, MIN, MAX, and low battery icon
    Operating Temperature 40 to 100 degrees F (4 to 43 degrees C)
    Operating Humidity 90%, 32 to 86 degrees F (0 to 30 degrees C)
    75%, 86 to 104 degrees F (30 to 40 degrees C)
    45%, 104 o 122 degrees F (40 to 50 degrees C)
    Power Supply 3 1.5V AAA batteries
    Auto Power Off (APO) After 30 minutes of inactivity
    Dimensions 9.2" x 2.5" x 1.1" (235mm x 63mm x 28mm)
    Weight 7.7 oz (218 g)
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    * Required Fields

    • 1x - Pinless Moisture Meter
    • 3x - AA batteries
    • 1x - Pouch case

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