










💧 Detect damp before it disrupts your space—smart moisture sensing made simple!
The Extech MO55 is a compact, battery-powered moisture meter offering both pin and pinless measurement modes. It accurately detects moisture levels in wood and various building materials up to 1 inch deep without surface damage. Featuring audible alerts and a clear display with data hold, it empowers professionals and DIYers alike to quickly identify hidden dampness and prevent costly repairs.


| ASIN | B01IABHOUE |
| Batteries | 2 AA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 29,722 in DIY & Tools ( See Top 100 in DIY & Tools ) 255 in Scanners & Testers 506 in Sealers |
| Colour | Green |
| Coverage | 9V |
| Customer Reviews | 4.3 4.3 out of 5 stars (711) |
| Date First Available | 15 July 2016 |
| Included components | Complete with pins (2), protective cap, and 9V battery |
| Item Package Quantity | 1 |
| Item Weight | 122 g |
| Item model number | MO55 |
| Manufacturer | Extech |
| Material | Wood |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part number | MO55 |
| Pattern | Moisture Meter |
| Plug profile | Freestanding |
| Power source type | Battery Powered |
| Product Dimensions | 6.6 x 3.05 x 17.02 cm; 122.47 g |
| Voltage | 9 Volts |
| tech_spec_battery_description_toys | 9V Battery |
P**S
Versatile, quick and easy to check for embedded damp without surface damage.
Very useful tool in checking for hidden excess dampness in buildings and materials without leaving any marks or surface puncture damage. Quick to use with options for either surface testing pins or non damaging deeper embedded moisture and also choice of wood or general building material. Works well with wood, blocks, concrete, plaster ect. Even locates damp areas behind 'foil backed' plasterboard. Have found it can gives a false positive sometimes with some natural building stones, but this can be checked against known dry sample. Readings should be treated as indicative of relative dampness, which it is good at, although as with all these meters a digital reading calibration function would have been useful. Easy to use, clear large display. Good value. Highly recommended.
C**R
Really easy to use, does the job, saved us money in finding leak
Used it to successfully locate the source of damp in our kitchen and one of the bathrooms. Thanks to this handy little device we didn't have to tear up the entire rooms to find the problem, which turned out to be a leaky pipe in both cases. We could pinpoint where it was wettest and then just remove that tile, and in fact that's where the problem originated from. We found it very easy to use despite having virtually zero DIY experience, and well worth the investment. Will definitely be using this regularly to check the bathrooms and kitchen in our place.
M**R
Quality meter
I've had several different moister meters over the years. This one seems really good quality. Various modes and functions all work well. Seems accurate as well. A versatile meter that is good value.
S**9
This works.
I have a Brennenstuhl model, that has only pins, pins are ok for wood an brick but not so good for detecting wood panels in a motorhome or caravan, this works as a scanner, so is easy to use. Dont listen to keyboard warriors who claim they have a £300 scanner and this is inferior, IT DOES WHAT IT SAYS ON THE TIN, detects Water Ingress, and Damp Panels.
B**5
Pronged is excellent, wireless not so much
Hit and miss. When used with my professional graded it was surprisingly very close, it was bought for a friend's van. But the wireless part was reading way way too high giving readings off up to 80% I believe it was reading through to van onto the outside So for pronged use I recommend. For wireless I don't
G**L
Moisture Meter
This has been invaluable in measuring the amount of dampness in my house. I had a huge amount of water ingestion.. After it was fixed I wanted to keep a check on things. It has proved very helpful.
B**E
Pretty good for the money
It's easy to use, not too expensive - I've tried the cheaper end of the market and they were useless - and seems reasonably accurate so far.
A**E
Good value
Very useful non-intrusive indicator of damp at a good price. Probably not super accurate but good enough to determine if there are likely to be any problems. Instructions weren't the best hence one star removed.
C**N
Très simple d'utilisation.
W**G
Very good quality and easy to use
R**.
works. easy to use. just what I needed to check for basement leaks.
P**A
bom equipamento a bom preço
A**5
Prodotto non professionale.
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