Multi-Echo Ultrasonic Thickness Gauge with 0.001mm Resolution for Industrial Corrosion Monitoring
Designed for precise thickness measurement across manufacturing, metal fabrication, chemical and commodity inspection sectors, this ultrasonic thickness gauge reliably assesses ferrous and non-ferrous metals, high-temperature piping, tubing, sheet stock (steel, aluminum sheets), polymer materials, cast iron tubing, PVC tubing and glass substrates, while supporting ongoing monitoring of corrosion-induced thinning in production pipelines and pressure vessels as a critical material protection instrument.
- modelLM-3
- brandLABEKS
- min. order1 pcs
- packageplywood case package
description
Our LM-3 handheld precision ultrasonic thickness gauge utilizes a single-crystal delay line probe and multi-echo technology to enhance measurement accuracy, achieving a resolution of 0.001mm and a minimum measurable thickness of 0.30 mm. The LM-3 offers two operating modes: Normal mode, which employs the interface wave-echo method and covers a measurement range of 1.5 mm ~ 20 mm; and Precision mode, which uses the echo-echo method with a range of 0.30mm ~ 10 mm.
This gauge is optimized for measuring flat steel sheet components.
features
Coating-penetrating capability: Eliminates the need for surface polishing, allowing direct substrate thickness measurement through coatings like paint layers
Exceptional measurement precision with a resolution of 0.001mm
Optimized for thin material testing, enabling accurate and reliable measurement of 0.25mm flat thin steel sheets
specifications
Model | LM-3 |
|---|---|
Display | 128× 64 Dot Matrix LCD Display(EL Backlight) |
Working principle | Interface wave-echo mode (normalmode) echo-echo mode (precision mode) |
Measuring range | 1.5~20mm (Normal mode) 0.3~10mm (Precisionmode) |
Unit and Display Resolution | Millimeter-0.001,0.01,0.1inch-0.0001,0.001,0.01 |
Indication error | ±0.01 mm (below 3mm) ;±0.05 mm (below20 mm) |
Calibration mode | One-point calibration, two-pointcalibration |
The measurement update rate | For routine measurement: 4Hz; scanning the minimum value:25 Hz |
The sound speed range of thematerial | 1000~9999m/s or 0.0394~0.3937in/us |
The storage function | divided into 5 arrays, which canstore 500 thickness values. |
Sound speed storage | store the sound speed of 5different materials. |
Language | Chinese or English |
Power supply | two 1.5V AA batteries. When thepower is insufficient, there will be a low voltage prompt. |
Operating time | alkaline battery can be used for200 hours (no backlight) |
Automatically shut down | after 5 minutes withoutoperation |
Working temperature | -10℃~+50℃, with specialrequirements up to -20℃ |
Size | 149*73*32mm |
Weight | 200g (including battery) |
Standard configuration | LM-3 thickness gauge, single crystal probe, instrumentbox, two alkaline batteries, coupling agent, operation manual, certificate ofapproval and packing list |
Optional accessories
Model | Frequency | Contactdiameter |
|---|---|---|
D15A | 15MHZ | 6mm |
Configuration list | |
|---|---|
Mainframe | 1 |
Coupling agent | 1 |
Probe | 1 |
Battery | 2 |
Packing document | 1 |
Instrument seal box | 1 |
Note: If send it by air, notincluding batteries, it’s an empty bottleforCoupling agent. | |
why choose us
Premium Quality with CE & ISO
We conduct 100% performance testing on every unit, ensuring its stable operation and superior performance in your application.
24/7 Expert Technical Support
Our senior engineers are on standby 24/7, ready to provide expert solutions at any time to minimize your operational downtime.
20+ Years R&D & Production
Our deep technical expertise is your solid guarantee for professional and reliable OEM/ODM services.
Trusted in 80+ Countries
Industry leaders and research institutions in over 80 countries and regions rely on our equipment for stable operation.
True Manufacturer, Factory-Direct Price
Bypass the middlemen to get our factory pricing and speak directly with our core engineers.
Rapid & Reliable Delivery
Our extensive in-stock inventory provides a solid guarantee for rapid and reliable global delivery.

Our Factory
20 Years
58 Experts
20000 m²
7X24 Hours




