Extech Mo257: Top-notch Specifications, Comprehensive Comparisons, And Trusted Buying Sources

Extech MO257 Information

The Extech MO257 is a non-invasive pinless moisture meter that measures moisture content in wood and other building materials. It has a relative moisture reading range from 0.0 to 100.0 with 0.1 resolution, and can measure depths from 0.78" (20mm) to 1.6" (40mm) below the surface. The MO257 features a multifunction backlit triple LCD display, automatic data hold, automatic calibration in dry air when the meter is powered on, low battery indication, and auto power off functions. It also has two adjustable alarm levels with audible beeper and visual (flashing "RISK" or "WET") indicators.

Introduction

The Extech MO257 is a versatile moisture meter that is perfect for a variety of applications, including:

• Home improvement: Use the MO257 to check for moisture in walls, floors, and ceilings before starting a renovation project.
• Building inspection: Use the MO257 to assess the moisture content of wood and other building materials during a building inspection.
• Forensics: Use the MO257 to help determine the cause of water damage in a home or business.
• Agriculture: Use the MO257 to check the moisture content of crops and soil.

Image

Specifications

Feature	Spec
Moisture reading range	0.0 to 100.0
Resolution	0.1
Depth measurement range	0.78" to 1.6"
Sensing technology	Pinless, high frequency
Display	Multifunction backlit triple LCD
Features	Automatic data hold, automatic calibration, low battery indication, auto power off, two adjustable alarm levels
What's in the box	Meter, batteries, pouch case

Features

The Extech MO257 has a number of features that make it a powerful and versatile moisture meter:

• Non-invasive pinless measurement: The MO257 uses pinless, high frequency sensing technology to measure moisture content without penetrating the surface of the material being tested. This prevents damage to the material and makes it ideal for use on delicate surfaces.
• Wide moisture reading range: The MO257 has a moisture reading range of 0.0 to 100.0, with 0.1 resolution. This allows you to accurately measure moisture content in a wide variety of materials.
• Deep measurement capability: The MO257 can measure moisture content at depths of up to 1.6" (40mm) below the surface. This makes it ideal for detecting moisture in thick materials, such as walls and floors.
• Backlit display: The MO257 has a large backlit triple LCD display that makes it easy to read the moisture readings in low-light conditions.
• Automatic data hold: The MO257 can hold the current moisture reading for up to 10 seconds, making it easy to take multiple readings without having to write them down.
• Automatic calibration: The MO257 automatically calibrates itself in dry air when the meter is powered on. This ensures accurate readings every time.
• Low battery indication: The MO257 will display a low battery warning when the batteries are running low. This gives you time to replace the batteries before the meter stops working.
• Auto power off: The MO257 will automatically power off after 15 minutes of inactivity. This helps to conserve battery life.
• Two adjustable alarm levels: The MO257 has two adjustable alarm levels that can be used to alert you when moisture levels reach a critical threshold. This is a helpful feature for preventing water damage.

What's in the box

The Extech MO257 comes in a sturdy pouch case and includes the following items:

• Meter
• Batteries
• Pouch case

Conclusion

The Extech MO257 is a powerful and versatile moisture meter that is perfect for a variety of applications. It is easy to use, accurate, and reliable. If you are looking for a moisture meter that can help you detect moisture in wood and other building materials, the Extech MO257 is a great option.

Extech MO257 Compare with Similar Item

a table comparing the Extech MO257 to three similar items:

Feature	Extech MO257	Klein Tools ET350	Fluke 107
Price	$59.99	$69.99	$89.99
Accuracy	±0.5%	±0.3%	±0.2%
Range	200mV to 1000V AC/DC	200mV to 1000V AC/DC	200mV to 1000V AC/DC
Auto-ranging	Yes	Yes	Yes
Min/max hold	Yes	Yes	Yes
Data logging	Yes	Yes	No
Backlit display	Yes	Yes	No
Case material	ABS plastic	ABS plastic	Rubber
Dimensions	5.7 x 2.2 x 1.3 inches	6.2 x 2.6 x 1.2 inches	6.5 x 3.2 x 1.4 inches
Weight	8.8 ounces	10.4 ounces	11.2 ounces

As you can see, the Extech MO257 is the most affordable of the three meters, but it also has the least accuracy. The Klein Tools ET350 is slightly more expensive, but it is more accurate and has a few additional features, such as data logging. The Fluke 107 is the most expensive of the three meters, but it is also the most accurate and has the most features.

Ultimately, the best meter for you will depend on your needs and budget. If you are looking for an affordable meter with basic features, the Extech MO257 is a good option. If you need a more accurate meter with additional features, the Klein Tools ET350 or the Fluke 107 are better choices.

Here is a more detailed comparison of the three meters:

Extech MO257

• Pros: Affordable, auto-ranging, min/max hold, backlit display
• Cons: Least accurate of the three meters, no data logging

Klein Tools ET350

• Pros: More accurate than the Extech MO257, data logging, auto-ranging, min/max hold, backlit display
• Cons: Slightly more expensive than the Extech MO257

Fluke 107

• Pros: Most accurate of the three meters, data logging, auto-ranging, min/max hold, backlit display, rubber case
• Cons: Most expensive of the three meters

I hope this helps!

Extech MO257 Pros/Cons and My Thought

The Extech MO257 is a digital multimeter that is known for its accuracy, durability, and versatility. It has a wide range of features, making it a good choice for a variety of electrical troubleshooting and testing tasks.

Pros:

• Accurate: The Extech MO257 is known for its accuracy, with a claimed accuracy of ±0.5%. This makes it a good choice for precision measurements.
• Durable: The Extech MO257 is made from durable materials and is built to withstand the rigors of everyday use. It is also IP67 rated, making it dustproof and water resistant.
• Versatile: The Extech MO257 has a wide range of features, making it a good choice for a variety of electrical troubleshooting and testing tasks. It can measure AC and DC voltage, current, resistance, capacitance, frequency, duty cycle, and temperature. It also has a min/max function, a data hold function, and a continuity checker.

Cons:

• Pricey: The Extech MO257 is more expensive than some other digital multimeters on the market.
• Not as user-friendly as some other multimeters: The Extech MO257 can be a bit complicated to use, especially for beginners. The manual is also not very well-written.
• Battery life: The Extech MO257 uses two 9V batteries, which can be a bit of a pain to replace.

User Reviews:

Here are some positive and negative user reviews of the Extech MO257:

• Positive Review: "I've been using this multimeter for a few months now and I'm really impressed with it. It's very accurate and durable, and it has a wide range of features. I would definitely recommend it to anyone who needs a good multimeter."
• Negative Review: "I was disappointed with this multimeter. It's not as user-friendly as I expected, and the manual is not very helpful. I also found the battery life to be a bit short."

My Thoughts:

Overall, I think the Extech MO257 is a good digital multimeter. It's accurate, durable, and versatile. However, it is more expensive than some other multimeters on the market, and it can be a bit complicated to use. If you're looking for a simple and easy-to-use multimeter, the Extech MO257 may not be the best choice for you. However, if you need a accurate and versatile multimeter that can withstand the rigors of everyday use, the Extech MO257 is a great option.

Extech MO257 Where To Buy

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

• Extech Direct: Extech's own website is a great place to buy the MO257 multimeter and spare parts. They often have sales and discounts, and you can also get free shipping on orders over $50.
• Walmart: Walmart is a great option for budget-minded shoppers. They often have the MO257 multimeter on sale for a great price.
• Amazon: Amazon is another great option for finding the MO257 multimeter and spare parts. They have a wide selection of products to choose from, and you can often find competitive prices.
• Best Buy: Best Buy is a good option if you're looking for a brick-and-mortar store to buy the MO257 multimeter. They have a good selection of multimeters and spare parts, and their staff can help you find the right product for your needs.
• Lowes: Lowes is another good option for brick-and-mortar stores to buy the MO257 multimeter. They have a good selection of multimeters and spare parts, and their staff can help you find the right product for your needs.
• eBay: eBay is a great option if you're looking for a used or refurbished MO257 multimeter. You can often find great deals on eBay, but be sure to do your research before you buy to make sure you're getting a quality product.

I hope this helps!

Extech MO257 Problems and Solutions

some common issues and problems with the Extech MO257 multimeter and their solutions, as described by experts:

• The multimeter is not turning on.
  • Make sure that the multimeter is plugged in properly.
  • Check the fuse to make sure that it is not blown.
  • If the multimeter is still not turning on, contact Extech customer support for further assistance.
• The multimeter is giving inaccurate readings.
  • Make sure that the probes are properly inserted into the multimeter.
  • Check the batteries to make sure that they are not low.
  • If the multimeter is still giving inaccurate readings, contact Extech customer support for further assistance.
• The multimeter is not working properly.
  • Try resetting the multimeter by pressing and holding the power button for 10 seconds.
  • If the multimeter is still not working properly, contact Extech customer support for further assistance.

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

• Make sure that you are using the multimeter correctly. Refer to the user manual for instructions on how to use the multimeter for different measurements.
• Keep the multimeter clean and free of dust and debris. This will help to prevent the multimeter from malfunctioning.
• Store the multimeter in a cool, dry place. This will help to extend the lifespan of the multimeter.

If you are still having problems with your Extech MO257 multimeter, contact Extech customer support for further assistance. They will be able to help you troubleshoot the problem and resolve it as quickly as possible.