User Guide
Dual Moisture Meter Pro
Pin / Pinless Moisture Meter with remote probe
Model MO265
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Introduction
Congratulations on your purchase of the Extech MO265 Moisture Meter. The MO265
detects moisture in wood and other materials such as particle board, carpeting, and
ceiling/bathroom tiles using the non-invasive method (pinless); the MO265 also measures
moisture in sheet rock and other building materials using the pin method. The remote
probe can also be used to make pin measurements. This meter is shipped fully tested
and calibrated and, with proper use, will provide years of reliable service.
Features
• %WME (wood moisture equivalent) pin moisture reading
• Relative (REL) pinless moisture reading for non-invasive measurement
• Remote probe measurements
• Digital LCD readout with backlighting feature and tri-color LED bargraph
• Quickly indicates the moisture content of materials
• Pinless measurement depth to 0.75" (22mm) below the surface
• Electro-magnetic sensing technology for pinless operation
• Built-in calibration check and calibration zero
• Replaceable measurement electrode pins
• Low battery indication
• Cap protects pins during storage
• Cap can be snapped onto the side of the housing during use
• Complete with 9V battery, replacement pins, protective cap, and pouch case
MO265-EU-EN-V1.0-10/10
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Description
Meter Description
1. Electrode pins protective cap (pins underneath)
2. LCD display
3. Tri-color Bargraph
4. HOLD / POWER key
5. Protective cap attachment
6. Protective cap holders
7. MODE button
8. Remote probe connector plug
9. Remote Probe
10. Measurement pins
Notes:
• Battery/Spare Pin compartment located on the rear of
the instrument
• Electrode pins located beneath the protective cap
• Calibration source located at the top of protective cap
• A tripod mount is located on the rear of the remote probe head
LCD Display Description
1. Measurement reading
2. Battery status
3. Audible alert icon
4. Measurement mode
5. Display HOLD icon
Bargraph Display Description
The bargraph indicates WET / DRY measurements using three LED colors: Green
(for dry), Amber (for moderate moisture), and Red (for very moist). As the reading
moves up the bargraph scale from the DRY indicator to the WET indicator, the LED
color changes from green, to amber, and then to red.
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