--- product_id: 6584752 title: "TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch" brand: "sulmile" price: "€ 5.92" currency: EUR in_stock: null reviews_count: 8 url: https://www.desertcart.hr/products/6584752-tm8812-ultrasonic-thickness-gauge-1-2-200mm-0-05-8inch store_origin: HR region: Croatia --- # 500-9000m/s sound velocity ±0.5%+0.1 high accuracy 1.2-200mm wide range TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch **Brand:** sulmile **Price:** € 5.92 **Availability:** ❌ Out of Stock ## Summary > 📏 Measure smarter, not harder—precision that keeps you ahead. ## Quick Answers - **What is this?** TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch by sulmile - **How much does it cost?** € 5.92 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/6584752-tm8812-ultrasonic-thickness-gauge-1-2-200mm-0-05-8inch) ## Best For - sulmile enthusiasts ## Why This Product - Trusted sulmile brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** Portable design that fits your toolkit and your fast-paced workflow. - • **Measure with Mastery:** Covering ultra-wide thicknesses from 1.2mm to 200mm, no surface is off-limits. - • **Precision You Can Trust:** Achieve pinpoint accuracy with ±0.5%+0.1 tolerance—because details matter. - • **Speed Meets Versatility:** Adjustable sound velocity from 500 to 9000m/s for diverse materials and conditions. - • **Future-Proof Your Inspections:** Stay ahead with a gauge built for professionals demanding reliability and speed. ## Overview The TM8812 Ultrasonic Thickness Gauge offers a broad measurement range from 1.2 to 200mm with exceptional accuracy of ±0.5%+0.1. Its adjustable sound velocity (500-9000m/s) ensures compatibility with various materials, making it an essential tool for professionals requiring reliable, precise thickness measurements in diverse industrial applications. ## Description TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch: desertcart.com: Industrial & Scientific Review: Simple, accurate, repeatable - Had it for a couple of months. It's simple to use, dependable, and provides accurate measurements (perhaps +/- 0.1 mm); it's actually surprisingly good, given its comparatively low price. Note that the nominal measurement range (starting at 1.2 mm) is given for iron / steel / aluminum. For materials with slower sound propagation (e.g., brass, copper, lead, plastics), the minimum range will be proportionately lower. Review: Worth the money, will pay itself by avoiding spending big money on questionable engine blocks. - Worth the money for checking engine blocks since it has grey cast iron setting. Calibrate with included steel block and then switch mode for material. You will notice that checking calibration block with meter on a different material setting will not produce calibration value since block is steel. That's how you know it's compensating for material selection. Did some initial accuracy checks on grey cast iron surfaces that I could also measure with calipers. Has decent accuracy even when surface isn't machined. +/- .010 on an as cast surface. I found it to be within claimed tolerance on machined surfaces. Does not get a reading when shooting into an irregular shapes or too close to edges. I.E. extreme top and bottom of cylinders where casting material is transitioning. Once I knew it would work, I modified sensor to fit curvature of block for easier coupling of sensor. I put sandpaper in bore and carefully sanded sensor into approx shape. Keep center divider in line with cylinder length. Only sand enough so that coupling fluid has easier time taking up space. I used generic "personal lubricant, a.k.a. glycerine" and it's works well in any position. Manual recommends oil, but thicker glycerin seems to work fine. ## Features - Wide measuring range: 1.2 to 200mm/0.06 to 8 inch - High accuracy of 0.5%n+0.1 - Sound velocity: 500 to 9000m/s ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00DKW4IYO | | Best Sellers Rank | #531,137 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #456 in Thickness Gauges | | Date First Available | June 24, 2013 | | Is Discontinued By Manufacturer | No | | Item Weight | 1.46 pounds | | Item model number | TM8812 | | Manufacturer | M&A INSTRUMENTS INC | | Package Dimensions | 9.6 x 8.1 x 2.1 inches | ## Images ![TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch - Image 1](https://m.media-amazon.com/images/I/41ZMeZiEjNL.jpg) ![TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch - Image 2](https://m.media-amazon.com/images/I/51jtQId-gqL.jpg) ![TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch - Image 3](https://m.media-amazon.com/images/I/61xgoWG2MAL.jpg) ![TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch - Image 4](https://m.media-amazon.com/images/I/61yUQ1Z5T0L.jpg) ![TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch - Image 5](https://m.media-amazon.com/images/I/61YcWcVrGgL.jpg) ## Questions & Answers **Q: Can this be used to Detect fake and real silver bullions** A: You need to enter into the device the velocity of sound for the expected material, e.g. with gold, 3240m/s. Then you can use that to measure the EXPECTED thickness of a gold bar, and compare it against the OBSERVED thickness, measured using micrometers. Should the bar contain say tungsten which has a velocity of sound of 5175ms/, the device will deliver a measurement much thinner than the actual, showing that the material conducts sound much faster than pure gold alone, implying that there may be irregularities. Then it's hacksaw time. Say it was a silver-plated lead bar, which has a specific gravity close but not the same as silver, the velocity of sound in lead is only about 1/3rd that of silver - so using the device on a 10mm thick silver plated lead bar would give a reading of something like 30mm, showing there's obviously something wrong with the bar. Works on gold and silver bars in the 5oz-5kg size range. Useless on coins. **Q: Will this measure thickness of copper, steel, pvc, or cast iron pipes full of water?** A: water will not make any difference. **Q: I am trying to measure thickness of a polyethelene layer that rests over a lead layer. Will this accomplish that?** A: Hello, I had to return it because of incorrect accuracy. **Q: Can I use this tool to measure the wall thickness of a painted steel fuel tank? If not, which gauge could measure that without sanding?** A: Yes it does,very accurate ## Customer Reviews ### ⭐⭐⭐⭐⭐ Simple, accurate, repeatable *by O***T on May 20, 2016* Had it for a couple of months. It's simple to use, dependable, and provides accurate measurements (perhaps +/- 0.1 mm); it's actually surprisingly good, given its comparatively low price. Note that the nominal measurement range (starting at 1.2 mm) is given for iron / steel / aluminum. For materials with slower sound propagation (e.g., brass, copper, lead, plastics), the minimum range will be proportionately lower. ### ⭐⭐⭐⭐ Worth the money, will pay itself by avoiding spending big money on questionable engine blocks. *by S***N on March 26, 2016* Worth the money for checking engine blocks since it has grey cast iron setting. Calibrate with included steel block and then switch mode for material. You will notice that checking calibration block with meter on a different material setting will not produce calibration value since block is steel. That's how you know it's compensating for material selection. Did some initial accuracy checks on grey cast iron surfaces that I could also measure with calipers. Has decent accuracy even when surface isn't machined. +/- .010 on an as cast surface. I found it to be within claimed tolerance on machined surfaces. Does not get a reading when shooting into an irregular shapes or too close to edges. I.E. extreme top and bottom of cylinders where casting material is transitioning. Once I knew it would work, I modified sensor to fit curvature of block for easier coupling of sensor. I put sandpaper in bore and carefully sanded sensor into approx shape. Keep center divider in line with cylinder length. Only sand enough so that coupling fluid has easier time taking up space. I used generic "personal lubricant, a.k.a. glycerine" and it's works well in any position. Manual recommends oil, but thicker glycerin seems to work fine. ### ⭐⭐⭐ Not very accurate on cast iron and painted mild steel but it works. *by W***L on February 6, 2020* Bought this to check for core shift on cylinder walls and wall thickness when porting cylinder heads. Measures the provided check disc perfectly but it is all over the place on cast iron and painted flat steel. The good thing is it shows it thinnner than it really is so you have a little wiggle room. Maybe as I get better with it, my results will improve but for example, the bulkhead on my 6.5 diesel block is 10.25mm thick. The machine says it is 10.1mm thick. I tried it on all settings just in case but it never gets more accurate than that. For the price, vs what a real sonic probe costs, it beats guessing like I normally do. ## Frequently Bought Together - TM8812 Ultrasonic Thickness Gauge 1.2-200mm,0.05-8inch TM-8812 - Aquasonic Aquasonic 100 Ultrasonic Gel, 250ml (8.5 Oz) Dispenser - Each, 8.45 Fl O - Parker Labs Aquasonic Clear Ultrasound Gel, 60g Tube, Each --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/6584752-tm8812-ultrasonic-thickness-gauge-1-2-200mm-0-05-8inch](https://www.desertcart.hr/products/6584752-tm8812-ultrasonic-thickness-gauge-1-2-200mm-0-05-8inch) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-06-23*