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Extech

Extech MO55W Wireless Datalogging Pin/Pinless Moisture Meter, Quickly Measure Moisture Content in Wood and Building Materials

  • Based on 257 reviews
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Availability: Only 8 left in stock, order soon!
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Arrives Saturday, Jun 14
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Style: MO57


Features

  • Pinless moisture measurement depth to < 4" (100mm)
  • Measures moisture up to 99.9% for wood and other building materials
  • Displays moisture level in wood and building materials such as wall board, sheet rock, tiles, cardboard, plaster, concrete, and mortar
  • Audible alert - Tone rate beeps faster as the moisture level increases
  • Icons display low, medium and high levels of moisture Content

Description

Take pinless (Non-Invasive) moisture measurements on wood and building materials without damaging the surface with the depth of approx <4" (100mm) with extech’s MO57 moisture meter. The ball moisture sensor provides smooth gliding on hard or delicate surfaces. Easy-to-operate with display icons that indicate the levels of moisture content plus audible alert feature. Ideal for building restoration projects and applications where moisture detection on floors, tiles and under carpets is critical. A musthave tool for analyzing the after-effects of water Leakage Behind walls and in ceilings and also measuring moisture content on a non-flat surface. Complete with 9V battery and wrist strap.


Brand: Extech


Item Dimensions LxWxH: 2.8 x 1.3 x 8.3 inches


Item Weight: 5.6 Ounces


Mounting Type: Surface Mount


Voltage: 9 Volts


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.8 x 1.3 x 8.3 inches; 5.6 Ounces


Item model number ‏ : ‎ MO57


Batteries ‏ : ‎ 2 Lithium Ion batteries required. (included)


Date First Available ‏ : ‎ January 9, 2018


Manufacturer ‏ : ‎ Extech


Country of Origin ‏ : ‎ China


Best Sellers Rank: #177,279 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #59 in Moisture Meters


#59 in Moisture Meters:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jun 14

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Great and often overlooked product
Style: MO280
I purchased this product when a home inspection turned up a few moisture issues with a home I was considering buying. The home was stucco, and there were questions as to whether the stucco had been properly installed and maintained. Since stucco is waterproof, the issue is that moisture gets trapped behind the stucco where it causes the underlying wood structures to rot over time. The best test is measuring the moisture content of the structure from behind, through an inside wall at problem areas such as corners of windows. In my testing, I was able to pinpoint areas of concern with the Extech meter where the moisture content was significantly higher. Sure enough, when we had an experienced stucco contractor look into these areas, water had been trapped behind the stucco and was quietly rotting some of the structural wood components. Needless to say, we passed on the home purchase, and the Extech saved us tens of thousands of dollars in future repairs. The unit itself is pretty basic and easy to operate...you simply point it at an object and the meter tells you the moisture content. I have no way to calibrate it, so I'm not sure how accurate it is, but usually the specific number isn't as important as the trend ("this corner is wetter than this other corner"). Unlike most of the pin-equipped meters that require physical contact, there's no need to drill holes or so forth - just point and read. There's no special skill required - pop the batteries in, and you're taking readings in just a few moments. Definitely recommended at the price! ... show more
Reviewed in the United States on September 2, 2013 by Busy Executive
    • Very good meter at a great price
Style: MO280
I bought this meter to temporarily replace my more expensive Tramex meter that broke after many years of use. That unit costs around $300.00. I am a professional home inspector along the Jersey Shore. Recently hit by Hurricane Sandy, I needed a cheap replacement fast for moisture readings on flooded and semi-flooded homes. This meter really surprised me. For about half the price of my Tramex, it performed flawlessly. On my first use, the meter correctly indicated varying degrees of moisture readings on high end maple hardwood flooring and also drywall. This relatively cheap meter saved my client tens of thousands in future repair costs and was instrumental (no pun intended) in showing how a "so called" reputable remediation contractor failed to complete a proper mold remediation and drying operation. I would have given it 5 stars but gave 4 instead only because it makes an annoying beeping noise when it searches to find its moisture reading. Once it locks onto an accurate reading, it stops beeping. One can clearly see the digital meter changing until it adjusts to its percentage. Kind of like a digital thermometer placed in cold then hot water, it takes a few seconds to find its temperature but with a beeping noise. As a professional home inspector reliant on proper equipment, I would absolutely recommend this product. Time will tell when I get my Tramex back from repair whether I will stick with this one as my primary, but very happy with it so far. A great buy for sure. ... show more
Reviewed in the United States on November 30, 2012 by Peter Daniele
    • Doesn't work and the customer service is non-existant
Style: MO280
UPDATE: I received a response from Extech and they are sending me a replacement unit. I have changed this to 4 stars as I hope this new unit works better (and longer) than my other unit. If you have an issue with your unit, use the notification function on the website. This is how I received a response. Also be patient. It took a week for anyone to get back to me but when they did, they came back with a solution. I wish there was an option for no stars. I purchased this in January 2016. It has been used a handful of times (less than 10) and when I tried using it again in December, it no longer worked. I replaced the battery but the unit has completely failed. I called Extech and left a voicemail with my issues asking for help trouble shooing. This was back in January 2017. They never responded. I sent an email through their website this week, and there has been no response to date. The device seems cheaply built. It is almost impossible to remove the battery connector from the battery. I am very unimpressed with this product as well as the customer service (or lack there of). ... show more
Reviewed in the United States on February 22, 2017 by KR
    • Meter displayed was incorrect.
Style: MO57
The product shipped was not the product displayed. This appears to be a common issue with Extech moisture meters. The battery included a 9v GoldenPower by Ecototal was dead.
Reviewed in the United States on September 24, 2022 by Al
    • the people of EXTECH answered my mail so quickly with very useful explanation...
Style: MO257
The device works as is intended, but you as a user have different expectations...This device doesn't measure directly moisture content but a qualitative reference of moisture content. I believe that the manual should be more extent in its content. On the other hand, the people of EXTECH answered my mail so quickly and with a very useful explanation regarding the theory, philosophy, and principles of this device. My first reaction was returned it, but now I understand what are its capabilities and limitations. I bought another device with pins, only as a backup until be capable myself to feel comfortable and reliable handling the MO257. ... show more
Reviewed in the United States on February 1, 2018 by Amazon Customer
    • I Would Expect More From Extech/Flir
Style: Standard
This is by far the worst moisture meter. It has never really worked correctly and now is unusable. It worked just well enough for me to have confidence but I have never been truly happy with it. Now it is past the 1 year warranty and only works when it wants to. I can send it in to get repaired for $150 which I will not do. I rather take a chance on buying a different meter. I would expect better from Extech which is a Flir company. I use other Extech and Flir products which have preformed great. For the price I would expect a better product and I'm very disappointed. The experience with this meter makes me weary of other Extech products. Edit: I first rated 1 star and change the rating due to Extech sending me a new meter. Which the new meter works much better. Read comments. ... show more
Reviewed in the United States on July 26, 2017 by Michelle

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