wll this work on finding a leak on a fiberglass boat?

It can find 'trapped moisture' as would be expected if WITHIN the fiberglass there is a wetted plywood laminate. Certainly the moisture in that '(mapped) area' would have a source, usually a deck fitting for instance. Be careful on the 'analysis,' as it may read non-structural (decorative) wall covering on the other side. Also, try to perform studies on a 'very dry' day.

What is the accuracy of this meter, and what was it compared to or tested against?

The accuracy is ± 4%,. the reference relative drying value is the measured value of conventional air humidity (relative humidity 50%~70%, temperature 25 ℃)+compensation value of human body.

Where is this manufactured?

Looks like China in the description.

What is the difference between pinless sand pinless color?

As to what I understood, Pinless is a bit less accurate gives you moisture readings percentage based on humidity so if there is something as a metal behind it senses the coldness of metal and adds it as moisture vs pin one is dead spot on which senses the humidity as the pins go into drywall, wood etc Hope this helps

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Description

💡 Detect moisture before it detects you—stay dry, stay ahead!

PINLESS PRECISION - Non-invasive tech detects moisture without damaging surfaces—perfect for pristine walls and wood.
EARLY LEAK DETECTION - Quickly spot leaks and humidity before costly damage sets in—stay ahead of expensive repairs.
COMPACT LIGHTWEIGHT - Portable 148g design fits in your toolkit for on-the-go home inspections and professional use.
ILLUMINATE HIDDEN RISKS - Integrated LED flashlight reveals moisture in dark, hard-to-reach spaces like crawl spaces and attics.
VERSATILE SURFACE COMPATIBILITY - Works seamlessly on wood, drywall, masonry, and concrete—ideal for diverse inspection needs.

The RDINSCOS Pinless Moisture Meter MT28 offers non-invasive, accurate moisture detection across multiple surfaces including wood, drywall, and masonry. Featuring a built-in LED flashlight for dark areas and a lightweight, compact design, it empowers home inspectors and DIYers to identify leaks and humidity early, preventing costly structural damage.

Reviews

4.5

All from verified purchases

S**R

I am buying third time

Fantastic product. I purchased third time. Good cost to performance ratio.

13.04.2025

M**I

Excellent product

Excellent

28.03.2025

P**L

Detect moisture but not detect leakage pipe

Not give accurate results

14.04.2025

P**R

Very useful

I think its very useful to check moisture in the wall.

9.07.2024

R**H

Haramkhor sale

Third quality products

29.03.2025

S**H

Reading not correct

Due the welgrow support at the back the meter is not giving correct readings

9.06.2023

J**

Wastage of money

Could not working showing moisture everwere on wall

17.01.2025

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TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

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B/.180

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Manufacturer	‎SHENZHEN REDDRAGON INSTRUMENTS CO.,LTD
Item model number	MT28
Product Dimensions	17 x 9 x 4 cm; 148 g
ASIN	B09BJJX1B8

RDINSCOS Pinless Moisture Meters Non-Invasive Digital Wood Moisture Tester Water Leak Detector For Wall,Lumber, Building,Firewood,Humidity Tester (Green)

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