How accurate are the readings for walls under windows?

I have no idea regarding the accuracy of this meter, I have an MT-19, which seems accurate enough for my needs. Suggestion: test on dry cardboard, progressively increase the moisture content, take several readings. This should give you an idea how damp your wall is.

Any good for caravans ?

actually, this is moisture meter for wood and paper or even the building.

Do you have to stick the pins into the material?

Yes, the pin should be into the material. But you could try the MT28 pinless wood moisture meter

Can it measure moisture, from a painted brick wall? It gives me 0% reading, once I move it around it will possibly change to 2.2%~3%

You can remove the painted cover. but painted brick wall is good for water blocking effect.

Rdinscos Pin Type Damp Moisture Meter With Large Backlit Lcd

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Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

💧 Pinpoint Moisture Like a Pro—Stay Dry, Stay Ahead!

ERGONOMIC PORTABLE - Compact, lightweight design fits comfortably in one hand with a 5-minute auto-off feature to save battery life.
PRECISION YOU CAN TRUST - Get rapid, reliable moisture readings with ±5% accuracy and a wide 5%-75% range—never miss hidden damp issues again.
COMPLETE READY TO GO KIT - Includes 4 probe pins, wrench, batteries, and storage bag—everything you need for professional-grade moisture testing on the move.
SMART MULTI MODE DETECTION - Effortlessly switch between hardwood, softwood, packing, and building modes for versatile moisture checks across materials.
INSTANT ALERTS ZERO GUESSWORK - Tri-color LED and audible alerts instantly signal low, mid, or high moisture levels—stay ahead of costly damage.

The RDINSCOS MT19 Pin-Type Damp Moisture Meter delivers fast, accurate moisture readings with ±5% accuracy and 0.1% resolution across a broad 5%-75% range. Featuring 4 smart modes for different materials, a large backlit LCD with hold function, tri-color LED and audible alerts, plus a built-in flashlight, it’s designed for professionals and DIYers to detect mold, leaks, and structural issues early. Lightweight and portable with auto power-off and low battery indicators, it comes complete with extra probes, wrench, batteries, and a storage bag for convenient, reliable moisture monitoring anywhere.

Specifications

ASIN	B0965G6DK7
Batteries	3 AAA batteries required. (included)
Batteries Required?	Yes
Batteries included?	Yes
Battery Cell Type	Other Than Listed
Best Sellers Rank	2,259 in Garden ( See Top 100 in Garden ) 46 in Scanners & Testers 111 in Lawn & Garden Watering Equipment
Colour	Black - Backlit Display
Customer Reviews	4.6 4.6 out of 5 stars (6,251)
Date First Available	13 Dec. 2023
Delivery information	We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout.
Guaranteed software updates until	unknown
Included Components	1 × caravan damp meter, 3 × AAA batteries, 4 × probe pins, 1 × wrench, 1 × storage bag, 1 × user manual
Item Weight	210 g
Item model number	RDINSCOS_MT19A
Manufacturer	SHENZHEN REDDRAGON INSTRUMENTS CO.,LTD
Part Number	MT19
Pattern	Pin-type
Power Source	Battery Powered
Product Dimensions	10 x 4 x 3 cm; 210 g
Shape	Large Backlit Color Display
Size	Small

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$71.60

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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RDINSCOS Pin-Type Damp Moisture Meter with Large Backlit LCD Display MT19

Description

Specifications

Common Questions