MO210 - Measurement Extech - Free user manual and instructions

Product Type	Pin-type Moisture Meter
Brand & Model	Extech MO210
Measurement Principle	Electrical resistance
Wood Moisture Range	6 to 44%
Building Material Range	0.2 to 2.4%
Display Type	Dual scale LCD with bargraph
Electrode Length	9.5 mm (0.375 in)
Electrode Pins	Integrated, replaceable
Auto Power Off	After approx. 15 minutes
Power Supply	Three (3) CR2032 button cells
Meter Housing	Impact-proof plastic
Operating Temperature	0 to 40 °C (32 to 104 °F)
Operating Humidity	85% RH max
Dimensions	130 x 40 x 25 mm (5.1 x 1.6 x 1.0 in)
Weight	108 g (3.8 oz)
Material Selector Switch	Wood or Building material
Cutoff Switch (Yellow Button)	Wake from auto power off
Protective Cap	Auto on/off switch, also stores test points
Verification Test Points	On cap (T for wood, B for battery)
Low Battery Indicator	LCD battery icon
Maintenance	Keep dry, clean electrode pins, wipe with damp cloth
Electrode Pin Replacement	Unscrew old, install new pins
Repair & Service	Calibration and repair by Teledyne FLIR
Safety Warning	Sharp pins; keep away from children; coin battery hazard

Frequently Asked Questions - MO210 Extech

How do I turn on the Extech MO210 moisture meter?

The meter automatically switches ON when the protective cap is removed. To wake the meter after auto power off, briefly press the yellow cutoff button.

What is the measurement range for wood and building materials?

The wood scale measures from 6 to 44% moisture. The building materials scale measures from 0.2 to 2.4%. To convert building scale to wood moisture equivalent, multiply by 20 (e.g., 0.6% x 20 = 12% WME).

How do I read the display?

The LCD shows a graphical bargraph, numerical reading, units, and a low battery indicator. A solid line indicates an even number; a dashed line indicates an odd number. The battery icon appears when batteries are weak.

How do I replace the batteries?

Remove the Phillips screw from the belt clip/battery compartment on the rear. Install three (3) CR2032 button cells observing correct polarity. Secure the compartment before use. Do not mix old and new batteries.

How do I replace the electrode pins?

Remove the protective cap, unscrew the old electrode pins, install new ones, and replace the cap. Ensure the pins are properly tightened.

What does auto power off do?

With the cap removed, the meter automatically switches off after 15 minutes to conserve battery life. To turn it back on, briefly press the yellow cutoff button.

How can I verify the meter is working correctly?

Set to wood position and touch the electrode pins to the 'T' test points on the cap. The reading should be 27% ±2%. For battery check, touch the 'B' test points; should read >44% ±2% on wood scale.

What safety precautions should I take?

The electrode pins are very sharp; cover with cap when not in use. Keep away from children. The meter contains small parts and coin batteries that can cause serious injury if swallowed. Dispose of batteries properly.

Can I use the meter on drywall?

Yes, for drywall (gypsum), use the WOOD setting on the material selector switch.

How do I clean and maintain the meter?

Keep the instrument dry. Prevent dirt accumulation at the electrode pins. Wipe the housing with a damp cloth; do not use abrasives or solvents. Store with batteries removed if not used for extended periods.

USER MANUAL MO210 Extech

Thank you for selecting the Extech Model MO210. This device is shipped fully tested and calibrated and, with proper use, will provide years of reliable service. Please visit our website (www.extech.com) for customer support and to check for the latest version of this User Manual.

Safety Cautions

• The electrode measurement pins are extremely sharp. Use care when handling this instrument. Cover the pins with the protective cap when the instrument is not in use.
• Do not allow children to handle this meter. It contains hazardous objects as well as small parts that can be swallowed.
• Do not leave the batteries and packing material unattended; they can be dangerous for children.
• When storing this device, remove the batteries and store separately, to prevent them from draining.
• Expired or damaged batteries can cause cauterization on contact with the skin. Use protective gloves when handling.
• Do not short circuit the batteries. Do not incinerate the batteries.

Meter Description

1. Measurement electrode pin
2. Cutoff switch
3. LCD (detail below)
4. Hand grip
5. Verification Test Points
6. Battery check Test Points
7. Removable cap
8. Material Selector Switch

Display Description

1. Graphical Display
2. Numerical Reading
3. Units
4. Low Battery Indicator
5. Solid lines – even number
6. Dashed lines – odd number

CAUTION: The electrode measurement pins are extremely sharp. Use care when handling this instrument. Cover the pins with the protective cap when the instrument is not in use.

1. Remove the protective cap to expose the electrode pins.
2. The meter automatically switches ON when the cap is removed.
3. The meter automatically shuts OFF when the cap is replaced.
4. To conserve battery life, the meter automatically shuts off after 15 minutes when the cap is removed. To wake the meter, short press the yellow cutoff button.
5. Slide the material selection switch to the wood moisture or the building moisture position.
6. Carefully push the electrode pins as far as possible into the material under test. Note that the pins should be inserted into the wood perpendicular to the wood's fiber structure.
7. Take several readings in several locations for the best representation of the moisture.
8. Read the measurement values on the display.
9. Replace the protective cap when finished.

Reading the Display

1. The display has two scales.
2. The wood scale indicates wood moisture from 6 to 44%. The building materials scale indicates moisture content from 0.2 to 2.4%. To calculate the Wood % equivalent, multiply the building material reading by 20.
   (example: 0.6% building scale x 20 = 12 %WME)
   For Drywall (Gypsum), use the WOOD setting
3. A continuous line indicates an even number. A dotted line indicates on odd number.
4. The battery icon appears when the batteries are weak and require replacement.

Auto Power OFF

With the protective cap removed, the meter will switch OFF after 15 minutes. Short press the yellow cutoff switch to wake the meter. Always secure the protective cap when the instrument is not in use.

Instrument Measurement Verification check

1. With the meter set to the wood moisture position, touch the electrode test pins to the two test points 1 and 2 at the top of the protective cap labeled 'T'.
2. With the meter ON, and the electrode pins touching the 'T' test points, the meter should read 27% (±2%). If not, the meter may require service.

Battery Check

1. With the meter set to the wood moisture position, touch the electrode test pins to the two test points 3 and 4 at the top of the protective cap labeled 'B'.

1. With the meter ON, and the electrode pins touching the 'B' test points, the meter should read >44% ( ± 2% ) on the wood moisture scale. If not, replace the batteries.

Specifications

Display	Dual measurement scale LCD with bargraph metering
Measurement principle Electrical resistance
Range	Wood: 6 to 44%, Building materials: 0.2 to 2.4%
Electrode length	9.5 mm (0.375 in.)
Electrode pins Integrated, replaceable
Auto Power OFF	After approx. 15 minutes
Power supply Three (3) CR2032 button cells
Meter housing	Impact-proof plastic
Operating Temperature 0 to 40 °C (32 to 104°F)
Operating Humidity	85% Relative Humidity (maximum)
Dimensions	130 x 40 x 25 mm (5.1 x 1.6 x 1.0 in.)
Weight	108 g (3.8 oz.)

Maintenance

General Care

• Always keep the instrument dry.
- Prevent dirt from accumulating at the electrode pins.
- Wipe the meter housing with a damp cloth to clean, if necessary. Do not use abrasives or solvents to clean the meter.

Electrode Pin Replacement

1. Remove the protective cap
2. Unscrew the electrode pins
3. Install the new pins
4. Replace the protective cap

Battery Replacement

If the instrument does not switch ON, displays the low battery symbol, or if the Battery Check shows < 44% on the wood moisture scale, replace the batteries:

1. Remove the Phillips screw from the belt clip/battery compartment on the rear of the instrument.
2. Remove the batteries taking note of their orientation and polarity.
3. Install three (3) new CR-2032 button batteries observing correct polarity.
4. Secure the battery compartment before use.

Battery Safety

• Remove and immediately recycle or dispose of used batteries according to local regulations, keeping the batteries away from children. Do NOT dispose of batteries in household trash or incinerate.
  • Even used batteries can cause severe injury or death.
• Call a local poison control center for treatment information.
  • This unit contains three (3) CR2032, 3.0 V, lithium batteries.
  • Non-rechargeable batteries are not to be recharged.
• Do not force discharge, recharge, disassemble, heat above 50^ C ( 122^ F), or incinerate. Doing so may result in injury due to venting, leakage, or explosion resulting in chemical burns.
• Ensure that the batteries are installed correctly according to correct polarity (+ and -).
• Do not mix old and new batteries, different brands or types of batteries, such as Alkaline, carbon-zinc, or rechargeable batteries.
• Always completely secure the battery compartment. If the battery compartment does not close securely, stop using the product, remove the batteries, keeping the batteries away from children.
• Remove and immediately recycle or dispose of batteries from equipment not used for an extended period of time, according to local regulations.

WARNING

• INGESTION HAZARD : This product contains a button cell or coin battery.
• DEATH or serious injury can occur if ingested.
- A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours.
- KEEP new and used batteries OUT OF REACH of CHILDREN.
- Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.

Never dispose of used batteries or rechargeable batteries in household waste.

As consumers, users are legally required to take used batteries to appropriate collection sites, the retail store where the batteries were purchased, or wherever batteries are sold.

Disposal: Do not dispose of this instrument in household waste. The user is obligated to take end-of-life devices to a designated collection point for the disposal of electrical and electronic equipment.

Copyright © 2025 Teledyne FLIR Commercial Systems, Inc.

Service client: https://support.flir.com/ContactService

Soutien technique: https://support.flir.com

Copyright © 2025 Teledyne FLIR Commercial Systems, Inc.

Teledyne FLIR warrants this Extech brand instrument to be free of defects in parts and workmanship for two years from date of shipment. To view the full warranty text please visit: https://www.flir.com/support-center/warranty/instruments/extech-product-warranty/

Calibration and Repair Services

Teledyne FLIR offers calibration and repair services for the Extech brand products we sell. We offer NIST traceable calibration for most of our products.

Customer Support

Local Telephone Support List: https://support.flir.com/contact

Return Material Authorization (RMA): https://customer.flir.com/Home

Customer Service: https://support.flir.com/ContactService

Technical Support: https://support.flir.com

Copyright © 2025 Teledyne FLIR Commercial Systems, Inc.

All rights reserved including the right of reproduction in whole or in part in any form.

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