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Digital Coating Paint Film Thickness Gauge

41 reviews
100% of buyers enjoyed this product! 2763 orders
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About this item:
Ultra Precision Measurement: Achieve precise measurements with a 0.1um resolution, ensuring accurate readings for your DIY lead paint test or torque ceramic coating review.
Multi-Certified Quality: This gauge boasts CE/RoHS/FCC certifications, ensuring its compliance with international standards for your peace of mind.
Versatile Application: Ideal for various industries, from manufacturing to chemical, this gauge is a versatile tool for material surface treatment.
Easy-to-Use Features: With non-contact calibration and auto Fe & Nfe detection, this gauge simplifies your measurements, making it perfect for outdoor use.
Durable Design: Constructed for longevity, this gauge withstands the rigors of the laboratory, workshop, and outdoor environments.

1. Fe–Magnetic substrate indicator: Steel/Iron
2. NF–Non-magnetic substrate indicator: Copper/Aluminum
3. Auto power off flag, auto power-off in 15 minutes with no-operation
4. Low battery indicator
5. Measured Reading Display
6. SNG: Single Measurement Mode
7. CON: Continuous Measurement Mode
8. Unit: um, mil
10. um/mil: Unit Switch Key, System Resetting Key( Press and Hold More than 3s )
11. ZERO: Clearing Display when SNG shows;
Using for calibration when CON shows.
12. MODE: Switch SNG/CON; SNG shows, Single-point Mode; CON shows, Continuous Mode
13. Anti-Skid Slot
14. Probe
16. Battery Compartment

TC-100 Digital Coating Thickness Gauge Tester ultra precision 0.1um Resolution Measuring Fe/NFe Coatings Car Paint 0~1300um
General Description:
The thickness gauge is used to measure the thickness of the plated and coated sheet on metal, e.g. paint/enamel/ chrome on steel, paint and anodizing coating on aluminum/copper. The gauge takes the precision integrated probe, and uses principles of electro-magnetic induction and the eddy current effect, which automatically detects the attribute of substrates.
The Gauge is designed for non-destructively measuring the thickness of coating and painting. It is essential for material surface treatment and widely used in manufacturing industry, metal-processing industry, chemical industry, commodity inspection area, and also able to work steadily in the laboratory, workshop and outdoor.

Packing List: (Batteries not included)
1*TC100 Coating thickness gauge
1*Protective case
1*Aluminum substrate
1*English manual
5*Standard foil
1*Lron substrate


We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, you can request a refund or reshipment for ordered products if:

  • If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
  • If you received the wrong item you can request a refund or a reshipment.
  • If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

We do not issue the refund if:

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of Amazmerch (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

41 reviews
100% of buyers enjoyed this product!
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1 star
verifed buyer
21 Sep 2021

I love the simplicity! Read and follow the instructions! Can’t go wrong. Make sure you calibrate it before use. Mine had no issues and was pretty spot on out of the box. There is a spring metal pointer with a plastic ring/base around it so make sure you press it level to the metal so that the ring lays flat against the surface. This will enable a more accurate read. What some folks don’t understand is that this device is measuring everything from the surface of the metal base to the top of your clear coat. Will not work on bumpers. As it states, it is for aluminum and steel based items. The thickness of your primer, paint, clear coat and any body fillers all add up to what is displayed on your screen. If one area is thick , 12mils for example, and 4” over to the next spot displays only 5 mils, there is a good chance the 12mil area was a repair job. My point is that thicker areas do not indicate thicker clear coat! This is an awesome unit for the price!

verifed buyer
21 Sep 2021

This thickness gauge is quite easy to use right out of the box, just power it on, press against a painted surface and instantly get a measurement. Measurements are repeatable so it seems accurate. I have used this to check panels on used cars quickly.

verifed buyer
20 Sep 2021

I'm a used car dealer and get lots use out of thickness gauges as they save me time and money. I checked my mail on the way out to an auction and the gauge was there, so I took it with me. It was easy to set up and intuitive to use. Right away it showed me a couple of vehicles that had replaced and/or repainted body panels. The large, bright display is easy to see and the size of the gauge fits my hand perfectly, unlike the cheaper and more expensive gauges I've used previously. If this holds up to regular use, it'll be a real "home run". It's also an incredible value.

verifed buyer
20 Sep 2021

There's cheaper thickness gauge meters out there, but most don't have a way to properly calibrate. This unit has full calibration features. It comes with metal substrates for zero cal as well as test tabs of different thicknesses for range calibration. Very happy with the product.

verifed buyer
18 Sep 2021

- If the car is repainted, has bondo layer, or other repair performed on it , this device will tell you about it. - The reading is instant and clear. - If you are into car restoration and detailing, or thinking of buying a used car, this would come in handy!

verifed buyer
14 Sep 2021

Really does a good job. It’s simple and effective. Oddly comes with two batteries which isn’t common these days. Recommended.

verifed buyer
13 Sep 2021

Doses not seen to be at all accurate. Changed my rating after the seller reached out to me and corrected my issue. Great communications.

verifed buyer
13 Sep 2021

Not super accurate. I used it to gauge the thickness of the paint on my steel boat. FYI you need to put both coin batteries in in order for it to work.

verifed buyer
12 Sep 2021

I buy and sell a lot of new and used cars. This device allows me to quickly assess if there has been previous damage or repaints done to areas of the car.

verifed buyer
8 Sep 2021

I bought this product to verify whether a panel had been repainted before polishing. I didn't want to do a test spot on an area and think I was good to go with a certain pads and compound/polish, then run into a complete different section, like thinking you have all hard clear coat, then burn right through a soft section. This product did spot on what I needed it to, and I'll definitely consider the brand when I need better accuracy.

verifed buyer
5 Sep 2021

Works great and accurate

verifed buyer
3 Sep 2021

Ready to go straight out of the box. Included calibration materials although no certified or authenticated. Great value for money.

verifed buyer
24 Aug 2021

Did what it was meant to. Very useful if you’re buying a used cars and want to see what’s been painted over or covered up by paint.

verifed buyer
19 Aug 2021

Wow, I am very impressed with this. It showed up same day from Amazon, put the included battery in, checked calibration and got to work testing the paint on my car. So easy to use and seemed consistent in its readings. The got carried away checking my diy paint job on my front door and such. This is a pretty cool device and i am sure I will find many more uses for it.

verifed buyer
14 Aug 2021

I was pleasantly impressed by this tool. The documentation is excellent and definitely a worthwhile read, in fact, I'd say its a mandatory read. They walk you through the controls and calibration processes for two kinds of metals. Its important to calibrate as instructed. I use, I first tested my own vehicle and then used it a couple more times on used cars that was considering. Paint thicknesses do vary based on panel location and, as the manual explains, you're looking for big differences between different panels more than paint differences on the same panel. I looked at the same model of car both times and saw the same pattern of paint thicknesses, where it was slightly thinner towards the bottom of the doors and slightly thicker along the C-pillars, for instance. I feel much more confident having used this tool than relying on an online service like Carfax which is only as good as the car accident and repair data that they collect.

verifed buyer
11 Jul 2021

Great product. The case feels well built and the buttons feel strong. It comes with a storage case, battery, calibration plates to ensure accurate measurements and easy to read instructions. Good price and easy to use.

verifed buyer
5 Jul 2021

So easy to use. Compared it to high dollar model at a local body shop and it was dead on. Sits on the top of my cart. Use every time before I polish a car.

verifed buyer
5 Jul 2021

I bought this item because I recently polished my car and guess what, I went through the paint. Now, I dont polish my car without ever checking how much clear coat I have. This item is dead accurate. Ok maybe +/-0.4 but when I do my checks, its on point most of the time. I wish I bought this sooner. I would recommend this product.

verifed buyer
5 Jul 2021

Not sure why thickness is an option to review on this but sure. The thickness of it seems about right? Anyway, works well, different modes are helpful depending on which you are looking for. Quick reminder it does not work on carbon fiber or non metal parts so you won’t be able to detect paint thickness on those parts. But otherwise great product for the price

verifed buyer
4 Jul 2021

For the money, I wasn't expecting much, but have been pleasantly surprised! The manufacturer even includes sample metal squares (ferrous and aluminum) and sample coating overlays of varying thickness to evaluate the calibration (1.97/3.94/9.84/19.7/39.4 mils). My unit is VERY accurate and precise (yes, I know the difference between those scientific terms) - less than 1% difference between subsequent/repeated readings of the same location, and less than 2% difference between the stated thickness of the samples and their actual readings. For a shade tree mechanic doing my own work, this more than suits my needs!

verifed buyer
1 Jul 2021

This thickness meter is a great tool and very easy to use. I test on several different rides with various paint conditions. It was exciting testing some of the rust spots in the video of my old rat rod.

verifed buyer
29 Jun 2021

Cheap and perfect for my profession

verifed buyer
24 Jun 2021

I didn’t know they made a mil gauge for aluminum but I was pleasantly surprised when I stumbled upon this. Great price too!

verifed buyer
23 Jun 2021

Item works as described. Not hard to setup or use. Definitely recommend.

verifed buyer
8 Jun 2021

I tested that vehicle and it's perfect -- this device is really worth it because it bought me peace of mind!

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