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Extech

Extech MO55 – Combination Pin/Pinless Moisture Meter

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Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Dec 31
Order within 6 hours and 37 minutes
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Style: MO55


Pattern Name: Moisture Meter


Features

  • Measure Moisture Level in wood, wall board, sheet rock, cardboard, concrete, plaster, and mortar
  • Moisture Icons provide a visual reference for low, medium, and high levels of moisture
  • Audible Alert Tone beeps faster as moisture level increases
  • Pinless Measurement Mode reads moisture up to 1 inches below the surface
  • Data Hold Function freezes readings on display

Description

The MO55 is a combination pin/pinless moisture meter. Take quick moisture measurements on wood and building materials with choice of pin or pinless (non-invasive) Method. 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 Must-Have tool for analyzing the after- effects of water leakage behind walls and in ceilings. Complete with pins (2), protective cap, and 9V battery.

Color: Green


Brand: Extech


Product Dimensions: 2.6"W x 6.7"H


Item Weight: 4.32 ounces


Battery Description: AA


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 2.6 x 1.2 x 6.7 inches; 4.32 ounces


Item model number ‏ : ‎ MO55


Batteries ‏ : ‎ 2 AA batteries required. (included)


Date First Available ‏ : ‎ July 11, 2016


Manufacturer ‏ : ‎ Extech


Best Sellers Rank: #52,190 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #27 in Moisture Meters #245 in Hardware Sealers


#27 in Moisture Meters:


#245 in Hardware Sealers:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Dec 31

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

    • it is probably my favorite tool. The problems I have uncovered and the ...
Style: MO55 Pattern Name: Moisture Meter
I use this every single day while performing home inspections. In fact, it is probably my favorite tool. The problems I have uncovered and the knowledge I have been able to provide with this has payed for it 100 times.Having both the pin and pinless mode is imperative. If it hasn't rained in a few days they without pinless you would never know if there is still leaking. Results are highly reproducible and accurate. One of the nicest things is the fact there is a chart on the back with levels of moisture for different materials/ modes. This is helpful as the pin/pinless modes read moisture differently therefore 30% on one is different from the other. The beeping is a nice touch in hard to reach areas. It would be nice if you could silence it though as can be a bit annoying while using for extended periods. Lastly, the power butting could be moved or redesigned. I like to carry this with me a lot and is easily turned on in a pocket. Not a huge deal but have gone through a few batts quickly when it gets wedged against something in my tool bag. P.S. pin cover is hard to open but that does prevent it from getting lost/ someone sticking themselves. I find it easiest to push on the front and rotate back, usually pops right off that way. Just make sure not to pin yourself. ... show more
Reviewed in the United States on November 10, 2017 by Tom M
    • Reliable and just works well
Style: MO55 Pattern Name: Moisture Meter
I don’t like the on/off button as it easily gets bumped and will turn on when you don’t want to. The depth on the pinless mode seems really good. I like that I can set it down on a flat surface and then back up and take a picture without having to hold onto it like I do with protimeter. Unit has been durable and reliable. It would be nice if they added an accessory jack. Overall good value. I’ve bought several now. ... show more
Reviewed in the United States on November 2, 2023 by Q Row
    • Stops working after a couple weeks
Style: MO55 Pattern Name: Moisture Meter
Purchased this device to use in pinless mode. Worked reasonably well the first time I used it. A couple weeks later I tried pinless mode and the readings were constantly at or above 90% even when not touching anything (should read 0% in that case). Device malfunctioned. Tried power cycle, replace batteries, etc with no luck. Note in this case the "pin mode" seemed to still work, but was not a fit for my needs. Returned/replaced the unit through Amazon. And the 2nd device did exact same thing. Unfortunately this time 2 days after my return window. Question sent via Amazon went unanswered. Im stuck with a malfunctioning device that I used one time. ... show more
Reviewed in the United States on September 21, 2021 by Brian Young
    • The Extech MO55: A Moisture Detective’s Best Friend – D & D Approved! 🔍💧✅
Style: MO55 Pattern Name: Moisture Meter
Review Image by D & D Pest Control Co. D & D Pest Control Co.
If Sherlock Holmes were a home inspector, he’d carry the Extech MO55 in his pocket like a magnifying glass for moisture mysteries! This little gadget is like a truth serum for damp drywall, stubborn subfloors, and sneaky wooden beams that think they can hide moisture from us. Think again, fellas! As a backup for D & D Home Inspection Services, the MO55 has been a rockstar—quick, reliable, and precise! Whether we’re using the pin mode for those deep investigations or the pinless mode for a less invasive check, it delivers the facts fast. The audible alert is an absolute bonus—it basically shouts, 'Hey! Something’s fishy here!' (or should I say… damp?). Lightweight, easy to use, and built to handle the rough-and-tumble world of home inspections, this meter has already proven its worth. If moisture had a lawyer, it would hate this device. Highly recommend for pros and homeowners alike—D & D gives it a solid ✅! ... show more
Reviewed in the United States on February 7, 2025 by D & D Pest Control Co. D & D Pest Control Co.
    • Works good.
Style: MO55 Pattern Name: Moisture Meter
Floor Carpet or walls. Identifies moisture in carpet and walls hidden, exterior also. Licensed Home Inspector, 17 years. Readings match my other tool.
Reviewed in the United States on September 15, 2024 by John G.
    • Works well without spending hundreds of dollars
Style: MO55 Pattern Name: Moisture Meter
This is the perfect tool to use in your house to check and make sure there aren’t any leaking pipes or rainwater getting in to your house. Heavy rains can drive water into the walls and sometimes sinks and toilets a leak and you’re not aware of it. Just lay this thing against the wall against the floor around your cabinets and you’ll know if it’s wet Underneath ... show more
Reviewed in the United States on January 10, 2024 by Song Sparrow
    • Accurate product.
Style: MO55 Pattern Name: Moisture Meter
Love this product. I use it at almost every job sight. Love the non probing feature to ready different building materials. I do not recommend keeping these in your vehicle as I think it ruins the display. Also don't keep in your tool bucket. It's not the best at withstanding hits.
Reviewed in the United States on July 8, 2019 by Dallin
    • Good product, not great
Style: MO55 Pattern Name: Moisture Meter
Review Image by M.R. M.R.
Review Image by M.R. M.R.
Bought in November 2021 for professional use in building forensics. Good product - relatively accurate. Pad sensor works well. Pins are not as accurate and you have to jiggle it around to get the reading. A hair's movement and it loses the reading. Button is on the front and activates/powers it on and off easily if you don't have it in your hands. I had in my work bag in its own compartment and would go off randomly all the time. In November of 2023, the power button jammed up on me on a jobsite, beeped on/off for a better part of 30mins, then ultimately just never turned on. Chart on the rear is super useful! Extech instruments was bought by Flir, so maybe they'll work on that. Not getting another one, but good for a first time user. ... show more
Reviewed in the United States on January 4, 2024 by M.R. M.R.

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