Will this detect a clippard miniature valve coil? or just large ones? i have no idea what magnetic field detection range: 63h, 98h, 401h, 810h is.

It should pick up clippards. However, the light that indicates a field is not very bright. I use it to check on the valves for my irrigation system. They are 24AC and not very powerful.

Can this tool be used for magnetic field detection on watches?

I'm not exactally sure what you are asking. It will detect a magnetic field that might interfere with some watches. If that is not what you are asking please be more specific.

Will this detect a neodymium magnetic field?

Of course, this tester will detect. It starts sensing not so strong magnet like neodymium one in the distance of ~15 cm.

Can it detect GPS cases that use magnets under cars

Thank you so much for your interest in our products. The MD10 will detect magnetic fields if they are located in the available ranges of the unit (63, 98, 401, 810 Henry units). Also, it will have to be found in a short span of the source.

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Extech MD10 Non-Contact Magnet Detector Pen with Flashlight

Extech MD10 Non-Contact Magnet Detector Pen with Flashlight

Product ID: 50984842

Details

Brand
Extech
Colour
Blue
Item weight
20 Grams
Power source
Battery
Style
Utilitarian

🔋Low battery indicator

🔦Integrated LED flashlight

🧲Non-contact magnetic detection

€ 59.40

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In stock

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Description

🧲 Illuminate your magnetic insights with precision and ease!

STAY POWERED STAY READY - Built-in low battery indicator ensures you’re never caught off guard in the field.
COMPACT PORTABLE DESIGN - Lightweight 20g pen with pocket clip—carry your magnetometer everywhere.
PRECISION VISUAL FEEDBACK - Bright blue LED clearly signals magnetic presence for quick diagnostics.
VERSATILE APPLICATION RANGE - Detects fields from 63H up to 810HL, perfect for speakers, relays, and solenoid valves.
EFFORTLESS MAGNETIC FIELD DETECTION - Instantly sense AC, DC, and permanent magnets without physical contact.

The Extech MD10 is a sleek, battery-powered non-contact magnet detector pen featuring a bright blue LED flashlight and a low battery indicator. It detects a wide range of magnetic fields (AC, DC, and permanent magnets) from 63H to 810HL, making it ideal for professionals testing audio speakers, relays, and solenoid valves. Compact and lightweight, it’s designed for on-the-go diagnostics with a convenient pocket clip.

Specifications

ASIN	B00M9AX6AK
Best Sellers Rank	73,116 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 37 in Light Measurement
Brand	Extech
Colour	Blue
Compatible Devices	All devices that can detect magnetic fields
Customer Reviews	4.4 4.4 out of 5 stars (469)
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00793950330104
Item Dimensions	20 x 25 x 159 millimetres
Item Highlight	Detects magnetic fields without contact, for solenoid valves/relays/coils, LED flashlight, pocket clip, 2 AAA
Item Type Name	Non-contact Magnet Detector with Built-in Flashlight
Item Weight	20 Grams
Manufacturer	Extech
Manufacturer Part Number	MD10
Measurement Type	Magnetometer
Model Number	MD10
Number of Items	1
Number of Packs	1
Power Source	Battery Powered
Specification Met	CE
Style Name	Utilitarian
UPC	793950330104
Unit Count	1.0 count

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TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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€ 59.40

Duties & taxes included

In stock

Sold byAmazon SpainDelivered 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 Spain.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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

3 weeks ago

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