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Extech Mo257: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

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Extech MO257 Information

The Extech MO257 is a pinless moisture meter that is perfect for measuring the moisture content of wood and other building materials. It is easy to use and has a number of features that make it a valuable tool for professionals and DIYers alike.

Introduction

The Extech MO257 is a non-invasive moisture meter that uses high frequency sensing technology to measure moisture levels up to 1.6 inches (40mm) below the surface. It is ideal for use in a variety of applications, including:

  • Construction and remodeling
  • Woodworking
  • Fire damage restoration
  • Mold remediation
  • HVAC system diagnostics

Specifications

The Extech MO257 has the following specifications:

  • Accuracy: ±2%
  • Resolution: 0.1%
  • Depth range: 0.78-1.6 inches (20-40mm)
  • Temperature range: 32-122°F (0-50°C)
  • Battery life: Up to 1000 hours

Features

The Extech MO257 has a number of features that make it a valuable tool, including:

  • Automatic calibration
  • Large backlit LCD display
  • Max and Min readings
  • Adjustable alarm levels
  • Audible and visual alerts
  • Ball moisture sensor
  • Durable construction

What's in the box

The Extech MO257 comes with the following items:

  • Moisture meter
  • 3 AAA batteries
  • Carrying case
  • Instruction manual

ImageImage of Extech MO257 pinless moisture meter

Conclusion

The Extech MO257 is a versatile and easy-to-use moisture meter that is perfect for a variety of applications. It is accurate, reliable, and has a number of features that make it a valuable tool for professionals and DIYers alike.

Here are some additional tips for using the Extech MO257:

  • For best results, make sure the surface of the material you are testing is clean and dry.
  • Hold the meter in a vertical position and place the sensor against the surface.
  • Move the sensor slowly across the surface to get an accurate reading.
  • The meter will display the moisture content in percentage.
  • The alarm levels can be adjusted to alert you when the moisture content reaches a certain level.
  • The MO257 is a durable tool that can withstand everyday use. However, it is important to store it in a cool, dry place when not in use.

Extech MO257 Compare with Similar Item

Here is a table comparing the Extech MO257 to three similar items:

FeatureExtech MO257Dr Meter MD8520Klein Tools MM600
Price$49.99$59.99$69.99
Accuracy±2%±2%±2%
Depth range0.78-1.6 inches0.78-1.6 inches0.78-1.6 inches
AlarmsTwo adjustable levelsTwo adjustable levelsTwo adjustable levels
DisplayLarge backlit triple LCDLarge backlit triple LCDLarge backlit triple LCD
Battery lifeUp to 1000 hoursUp to 1000 hoursUp to 1000 hours
WarrantyOne yearOne yearOne year

As you can see, the Extech MO257 is the most affordable option of the three. It is also very accurate and has a wide depth range. However, it does not have any additional features, such as a built-in flashlight or a memory function. The Dr Meter MD8520 and Klein Tools MM600 are both more expensive than the Extech MO257. They offer the same accuracy and depth range, but they also have additional features, such as a built-in flashlight and a memory function.

Ultimately, the best moisture meter for you will depend on your specific needs and budget. If you are looking for an affordable, accurate, and easy-to-use moisture meter, the Extech MO257 is a great option. If you need a moisture meter with additional features, such as a built-in flashlight or a memory function, the Dr Meter MD8520 or Klein Tools MM600 may be a better choice.

Here is a more detailed comparison of the three meters:

Extech MO257

  • Pros: Affordable, accurate, wide depth range, easy to use
  • Cons: No additional features

Dr Meter MD8520

  • Pros: Accurate, wide depth range, additional features (built-in flashlight, memory function)
  • Cons: More expensive than the Extech MO257

Klein Tools MM600

  • Pros: Accurate, wide depth range, additional features (built-in flashlight, memory function)
  • Cons: Most expensive of the three meters

I hope this helps!

Extech MO257 Where To Buy

You can buy the Extech MO257 and spare parts from the following places:

  • Extech direct: You can buy the Extech MO257 directly from the Extech website. They offer free shipping on orders over $50.
    Image of Extech MO257 at Extech direct website
  • Walmart: Walmart sells the Extech MO257 for a slightly lower price than Extech direct. They also offer free shipping on orders over $35.
    Image of Extech MO257 at Walmart website
  • Amazon: Amazon is another great option for buying the Extech MO257. They often have the best prices and offer a wide variety of options, including used and refurbished units.
    Image of Extech MO257 at Amazon website
  • Best Buy: Best Buy is a good option if you are looking for a brick-and-mortar store where you can buy the Extech MO257. They offer free shipping on orders over $35.
    Image of Extech MO257 at Best Buy website
  • Lowe's: Lowe's is another good option for buying the Extech MO257 from a brick-and-mortar store. They offer free shipping on orders over $45.
    Image of Extech MO257 at Lowe's website
  • eBay: eBay is a good option if you are looking for a used or refurbished Extech MO257. You can often find great deals on eBay, but be sure to do your research to make sure you are buying from a reputable seller.
    Image of Extech MO257 at eBay website

As for spare parts, you can also buy them from Extech direct, Amazon, or eBay. Extech direct is the best option if you need genuine Extech parts. Amazon and eBay are good options if you are looking for cheaper alternatives.

When buying spare parts, it is important to make sure that they are compatible with your Extech MO257. You can check the compatibility of spare parts by looking at the model number of your Extech MO257.

Extech MO257 Problems and Solutions

some common issues and problems with the Extech MO257 and their solutions:

Issue: The meter does not turn on.
Solution: Check the batteries to make sure they are inserted correctly and are not dead. If the batteries are inserted correctly and are not dead, the meter may be defective and should be repaired or replaced.

Issue: The meter is not reading accurately.
Solution: Make sure the probes are properly inserted into the meter. If the probes are inserted correctly and the meter is still not reading accurately, the probes may be damaged or the meter may be defective. In either case, the meter should be repaired or replaced.

Issue: The meter is not displaying any readings.
Solution: Make sure the meter is turned on and that the correct range is selected. If the meter is turned on and the correct range is selected and the meter is still not displaying any readings, the meter may be defective and should be repaired or replaced.

Issue: The meter is not storing data.
Solution: Make sure the meter is set to store data. If the meter is set to store data and the meter is still not storing data, the meter may be defective and should be repaired or replaced.

If you are experiencing any of these issues with your Extech MO257, please contact Extech customer service for assistance.

Here are some additional tips for troubleshooting common problems with the Extech MO257:

  • Make sure the meter is properly calibrated.
  • Check the connections between the meter and the probes.
  • Make sure the probes are clean and free of debris.
  • If you are still having problems, contact Extech customer service for assistance.

Extech MO257 Manual

Extech MO257 Moisture Meter Manual

Safety Information

  • Do not use this meter in explosive atmospheres.
  • Do not use this meter in the presence of flammable liquids or gases.
  • Do not use this meter in the presence of water or other liquids.
  • Do not use this meter in the presence of dust or other particles.
  • Do not use this meter if it is damaged or malfunctioning.
  • Do not use this meter for any other purpose than its intended use.

Before Use

  • Read and understand all of the instructions in this manual before using this meter.
  • Make sure that the meter is properly calibrated before use.
  • Clean the sensor with a damp cloth before each use.
  • Do not store the meter in extreme temperatures or humidity.

Troubleshooting

  • If the meter does not turn on, check the batteries.
  • If the meter is not reading moisture, make sure that the sensor is in contact with the material being measured.
  • If the meter is reading incorrect moisture levels, calibrate the meter.

Maintenance

  • Clean the sensor with a damp cloth after each use.
  • Store the meter in a cool, dry place.
  • Do not expose the meter to extreme temperatures or humidity.

Warranty

This meter is warranted to be free from defects in materials and workmanship for a period of one year from the date of purchase. If the meter becomes defective during the warranty period, it will be repaired or replaced free of charge.

Contact Information

For more information about this meter, please contact:

Extech Instruments
1 Exeter Plaza
North Reading, MA 01864

Additional Information

  • The Extech MO257 Moisture Meter is a non-invasive, pinless moisture meter that can be used to measure the moisture content of wood and building materials.
  • The meter has a large backlit triple LCD display that shows the moisture reading, maximum moisture reading, and minimum moisture reading.
  • The meter also has two alarm levels that can be set to alert the user when the moisture level reaches a certain threshold.
  • The Extech MO257 Moisture Meter is a valuable tool for contractors, home inspectors, and anyone who needs to measure the moisture content of wood and building materials.

Here are some additional tips for using the Extech MO257 Moisture Meter:

  • For best results, calibrate the meter before each use.
  • To calibrate the meter, press the "CAL" button and then touch the sensor to a piece of known moisture content.
  • The meter will beep and the display will show "CAL" when the calibration is complete.
  • When measuring moisture content, make sure that the sensor is in direct contact with the material being measured.
  • Do not move the sensor while the meter is taking a reading.
  • The meter can be used to measure the moisture content of wood, drywall, concrete, and other building materials.
  • The meter is not suitable for measuring the moisture content of food or other organic materials.

I hope this manual has been helpful. If you have any further questions, please do not hesitate to contact Extech Instruments.


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