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MO50 Compact Pin Moisture Meter

Q: Could this device provide accurate moisture readings of residential wall cavities following, for example, a flood?

It really only measures moisture that is within 1/2" of the surface. For example I have a leaky toilet in a bathroom and the subfloor is saturated with water. I have to push the prongs through the surface of the flooring until it reaches the wet subfloor, in order to get a reading. If you need something for reading deep within a wall, you will need an invasive meter which has really long prongs that can be fed through test holes that you drill into the affected area. If you want to test deep within areas such as several inches, the only way is through destructive inspection, pinless moisture meters, and in some cases infrared cameras. extech is one of the most trusted meter brands and I am very happy with my purchase. It works best for measuring the moisture content of wood specifically at the test location. If there was a flood and the surface appears dry but you have some suspension as to what's going on several inches into the wall cavity, this meter will not help.

Q: Does this work with painted concrete masonry?

Expect you would have to push the meter probes through the paint layer to get a good reading.

Q: Can i use it for paper?

The Extech MO50 takes quick Moisture level reference measurements (in percent %) on wood and building materials. The measurement range for building materials is Low: 1.5% to 16.9%; Medium: 17% to 19.9%; High: 20 to 33%. If the expected moisture percentage of the paper is expected to fall at or above 1.5% then the MO50 Compact Pin Moisture Meter would work appropriately.

Q: Anyone know the percent accuracy?

Thank you so much for your interest in our products. The accuracy for the MO50 is ±3.0% for ambient conditions 22 C to 25 C (72 F to 77 F). Check all the features off this device here http://www.extech.com/products/resources/MO50_UM-en.pdf

Product ID: 258946348

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Details

Colour
green
Brand
Extech
Product dimensions
6.6W x 17H
Item weight
0.12 Kilograms
Battery description
Alkaline

📊Visual moisture level icons

📏±3.0% accuracy

🔋9V alkaline battery powered

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Description

📏 Measure moisture like a pro—never miss a damp spot again!

INSTANT VISUAL ALERTS - Color-coded moisture icons let you instantly gauge low, medium, or high moisture levels at a glance.
AUDIBLE MOISTURE BEEPS - Dynamic beep frequency intensifies with moisture level, keeping you alert without looking down.
DATA HOLD FOR ON THE GO - Freeze readings on the display to capture and compare moisture levels effortlessly during inspections.
PRECISION YOU CAN TRUST - Achieve pinpoint moisture readings with ±3.0% accuracy for flawless project decisions.
COMPACT DURABLE DESIGN - Lightweight 120g ABS body fits comfortably in your hand and withstands job site rigors.

The Extech MO50 Compact Pin Moisture Meter delivers precise moisture detection across multiple materials including wood, drywall, concrete, and more. Featuring ±3.0% accuracy, visual moisture level icons, and an audible alert that intensifies with moisture, this lightweight, durable tool is powered by a 9V alkaline battery and designed for quick, reliable readings on the go.

Specifications

Manufacturer	FLIR Systems, Inc.
Part number	MO50
Item Weight	120 g
Product Dimensions	17.02 x 6.6 x 3.05 cm; 120 g
Batteries	1 Product Specific batteries required. (included)
Item model number	MO50
Size	MO50 Pin Measurement
Color	green
Style	MO50
Material	ABS
Power source type	corded-electric
Voltage	9 Volts
Item Package Quantity	1
Number Of Pieces	1
Measurement Accuracy	±3.0%
Plug Profile	Wall Mount
Included components	MO50
Batteries Included?	Yes
Batteries Required?	Yes
Battery Cell Type	Alkaline
tech_spec_battery_description_toys	Alkaline

Have a Question? See What Others Asked

Could this device provide accurate moisture readings of residential wall cavities following, for example, a flood?

Does this work with painted concrete masonry?

Can i use it for paper?

Anyone know the percent accuracy?

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