PaintPen Pro Review: A $49 Magnetic Pen Gauge for Spotting Repainted Car Panels

Our verdict

A cheap, useful first check when viewing a used car, within limits. PaintPen Pro is a pen-style gauge whose photo shows a magnetic tip and a coloured scale: pull it off a panel and the scale shows roughly how thick the paint is, which can flag repainted or filled areas. But magnetic gauges only work on steel, so aluminium and plastic panels give no reading, and the readings are rough bands, not the precise figures the title's "eddy current" and "precision" wording suggests. PaintPen Pro scores 4.0 out of 10, held back by overstated wording.

The short version

• What it is: a magnetic pen gauge for estimating car paint thickness.
• Price: $49 for one on 6 October 2026, with a five-pack for $149 flagged as the best seller.
• Best trait: a quick check for repainted steel panels.
• Biggest drawback: steel only, and rough rather than precise.
• Our score: 4.0 out of 10.

Pros & cons

The pros come from a genuinely useful idea. The cons come from its limits and the title's claims.

How it works

A magnetic pen gauge has a magnet on a spring inside the tip. Placed on steel, the magnet sticks; as you pull the pen away, the spring stretches until the magnet lets go. Thicker paint keeps the magnet further from the steel, so it releases sooner, and the indicator stops in a different coloured band. Comparing bands across panels shows which areas have unusually thick paint.

1. 01

   Place the tip on the panel

   Step 1: Hold the pen upright with its magnetic tip on a steel body panel.

2. 02

   Pull slowly

   Step 2: Draw the pen away; the magnet releases at a point that depends on how thick the paint is.

3. 03

   Read the scale

   Step 3: Check which coloured band the indicator stops in, and compare readings across panels.

The page title piles up "Car Paint Thickness Gauge", "Magnetic Paint Thickness Tester", "Electromagnetic Paint Gauge For Cars", "Eddy Current Paint Thickness Gauge" and "Car Paint Damage Detection Tool". The six bullets promise accurate detection of hidden repairs, non-destructive testing, precise measurements, portability, multi-industry use and durability.

What the page leaves out

Measuring range, scale values, accuracy and which metals it works on.

Magnetic or eddy current?

The photo shows a simple pen with a coloured scale and a yellow tip, typical of magnetic pull gauges. Eddy current gauges are usually digital with a display. What to do: ask the seller which type ships.

Who it's for

PaintPen Pro suits used car buyers making a first check, sellers wanting to show original paint, and curious enthusiasts. Our MasterHUD Pro review covers another car gadget from the same checkout, a head-up speed display.

• Used car buyers wanting a quick check for repainted steel panels
• People selling a car who want to show original paint
• Car enthusiasts curious about their car's paint history

Used car viewings

A quick sweep of steel panels can flag areas worth a closer look.

Sellers

Consistent readings help show original paint.

Enthusiasts

Curiosity about a car's history.

Who should skip it

Skip PaintPen Pro if the cars you check have aluminium or plastic panels, if you need precise readings, or if you would use it instead of a professional inspection.

• Anyone checking cars with aluminium or plastic panels
• Buyers who need precise micron readings
• Anyone relying on it instead of a professional inspection

Can PaintPen Pro really detect hidden repairs?

It can flag thick paint on steel panels, which often means a repair. carVertical's guide says most factory paint is about 100 to 180 microns, and that higher readings or big differences between panels can point to repainting or hidden bodywork. It also notes magnetic gauges work only on steel; aluminium needs an eddy current or ultrasonic gauge. The key is comparing panels, not one number.

What a used-car guide says

carVertical's guide to using a paint thickness gauge gives typical factory ranges by region and explains why consistency matters most.

What this means for you: check every steel panel, and note any that read very differently.

"Advanced Technology Ensures Precise Measurements"

A magnetic pen gives coloured bands, not exact microns.

Body filler

Very thick filler can stop the magnet sticking at all, which is itself a clue.

How much does PaintPen Pro cost, and are the cross-sells worth it?

On 6 October 2026, one PaintPen Pro cost $49, with the five-pack at $149 flagged as the best seller. Instead of accessories, the checkout cross-sold ClearView night driving glasses for $19, a tactical flashlight for $29 and a car USB charger adapter for $4, plus a 3-year warranty for $5. One pen is all most buyers need.

PaintPen Pro price and bundles

Prices are in US dollars as listed on 6 October 2026. You can check today's packages on the PaintPen Pro order page (opens G Com Pte Ltd in a new tab).

ClearView night glasses

For $19, yellow-lens aviators. Our ClearView review found a driving-simulator study showed yellow lenses did not help spot pedestrians or reduce glare. Skip them.

Tactical flashlight

For $29, the flashlight covered in our TacticalX Flashlight review, which matched a generic design and measured well below its claimed brightness in a test of a near-identical light.

Who sells it

The order page names G Com Pte Ltd at 137 Market Street in Singapore, with the email support@g63com.com and a phone number. The footer gives the country as Hong Kong. The page code says charges appear on your card statement as drone720x.com.

Is PaintPen Pro better than a digital paint gauge or a professional inspection?

It is cheaper and simpler; a digital gauge is more precise and works on more metals. Digital gauges show readings in microns and, with eddy current sensors, can measure aluminium as well as steel. A professional pre-purchase inspection checks far more than paint.

Choose PaintPen Pro if

You want a cheap first check on steel-bodied cars.

Choose a digital gauge or inspection if

You are spending serious money on a car. That is where a rival wins.

Other car gadgets we have reviewed

Our ScratchUndo Pro review covers a scratch repair pen, useful context if you find a touched-up panel.

If a pen gauge suits your car hunting, you can see today's bundles on the PaintPen Pro offer page (opens G Com Pte Ltd in a new tab).

Is PaintPen Pro legit, and what should you check before buying?

PaintPen Pro is a real gauge from a named seller, and it should arrive if you order. Before buying, ask whether it is magnetic or eddy current and what the scale means, switch from the five-pack and note the card statement name.

Ask about the type and scale

What to do: email support@g63com.com and ask whether it is a magnetic or eddy current gauge, what the coloured bands mean in microns, and which metals it works on. Keep the reply.

Check the selected bundle

The five-pack for $149 is flagged as the best seller in the page code. What to do: change the order to one pen.

Card statement name and memberships

The charge appears as drone720x.com. Pages on this checkout have also carried text for a "Gadget Discount Club" membership that is free for 30 days and then billed. What to do: read every checkbox and post-payment page.

Refunds and returns

The page code offers a 30-day guarantee for a full refund or replacement, less shipping and handling. The terms we recorded on 4 October 2026 focus on defective goods, which can be returned within two years once you have a returns number, with return postage at your cost.

How to buy PaintPen Pro the smart way

1. Ask support about type and scale.
2. Open the PaintPen Pro order page (opens G Com Pte Ltd in a new tab) and select your country.
3. Change the five-pack to one pen.
4. Skip the glasses, flashlight and car adapter.
5. Note the card statement name, drone720x.com.

How did we score PaintPen Pro?

PaintPen Pro scores 4.0 out of 10: claim accuracy 0.6, build durability 0.9, price competitiveness 0.8, usability 1.2 and owner satisfaction 0.5, each out of 2. It is a cheap, practical first check for repainted steel panels. The score falls on "eddy current" and "precision" wording for what looks like a magnetic pen, steel-only use and rough readings.

How the score breaks down

We use the five criteria on our how we test page, each out of 2.

What owners say

We found no Trustpilot profile for the gadgetxaura.com store and no retailer reviews for PaintPen Pro by that name. Owners of magnetic paint pens like them as a quick screening tool, and complain about vague readings, no response on aluminium panels and a learning curve to pull consistently.

What we did, and did not, do

Nobody on our team has used PaintPen Pro. We read the offer page our link opens and its page code on 6 October 2026, along with carVertical's paint gauge guide and the pages that rank for PaintPen Pro. The refund and returns terms are as we recorded them from the site's terms page on 4 October 2026.

How to use PaintPen Pro when checking a used car

Start on a panel you trust, like the roof, to get a baseline, then check every steel panel the same way and compare. Pull the pen straight and slowly, take several readings per panel, and treat any big jump, or no reading at all, as a reason to look closer or get a professional inspection.

1. Clean the panel. Dirt affects readings.
2. Baseline on the roof. Rarely repainted.
3. Pull straight and slowly. Consistency matters.
4. Several readings per panel. Middle and edges.
5. Compare panels. Look for big differences.
6. No reading? Aluminium, plastic or thick filler.
7. Get an inspection. For any expensive car.

Magnets

Check a magnet sticks before testing; if not, the panel is not steel.

Recording results

Note readings panel by panel on your phone.

What else do people ask about paint thickness gauges?

Most questions are about bumpers, aluminium cars and what a high reading means. Plastic bumpers need ultrasonic gauges, aluminium needs eddy current, and high readings suggest repaint or filler. Browse our auto gadget reviews for more.

Can it check bumpers?

Not plastic bumpers; they need an ultrasonic gauge.

Will it scratch the paint?

Use gentle contact; the tip should not scratch if clean.

Does a high reading always mean an accident?

No. It may be a cosmetic respray.

Do I need batteries?

Magnetic pens do not; digital gauges do.

Frequently asked questions