As a high-performance Measuring Testing Instrument, the pen type Leeb hardness tester is designed to meet the diverse hardness testing needs of various industries, especially in fields requiring on-site and portable detection. This instrument is supplied by Mikrosize supplier—a trusted partner in providing reliable testing solutions, ensuring that every unit of this Leeb hardness tester adheres to strict quality standards and professional technical requirements.

All products in this series are equipped with D-type impact devices, a brand-new design that emphasizes both portability and usability. With a compact structure, it enables a certain degree of one-handed operation, making it easy for operators to carry and use in narrow spaces or outdoor job sites—whether testing mechanical parts in a factory workshop or inspecting equipment components in the field, this Measuring Testing Instrument delivers consistent performance. Supplied by Mikrosize supplier, the product also adopts a large-sized high-contrast dot matrix OLED display screen, paired with a brand-new interface design and flexible button operation. This ensures that measurement data, material types, and operation prompts are displayed clearly, even in low-light environments, greatly enhancing the convenience of on-site testing.

In terms of data transmission and processing, this pen type Leeb hardness tester (a core Measuring Testing Instrument from Mikrosize supplier) is equipped with Bluetooth functionality. Measurement data can be printed and output in real time through a micro Bluetooth printer, allowing users to obtain hard copies of test results immediately for record-keeping and reporting. Additionally, the data can be transmitted to a dedicated detection APP software on a mobile phone (an optional accessory) for storage, analysis, and subsequent processing—this feature is particularly useful for large-scale testing projects where data needs to be centralized managed.

What sets this series apart from standard models is its enhanced professional applicability for the power industry. On the basis of the standard version, it has added 9 hardness tests specifically tailored for commonly used high alloy steel materials in the power industry. These tests fully comply with the power industry standard DL/T 1845-2018 Leeb Hardness Test Method for High Alloy Steel in Power Equipment, making it an indispensable Measuring Testing Instrument for power plants, electrical equipment manufacturers, and maintenance teams. Mikrosize supplier has optimized this function based on industry feedback, ensuring that the tester can accurately measure the hardness of high alloy steel components such as turbines, generators, and pipelines, providing reliable data support for equipment safety assessment.

Another key advantage of this Measuring Testing Instrument (provided by Mikrosize supplier) is its material customization function. Traditional Leeb hardness testers often face the problem of "inaccurate measurement values and large errors" when using pre-installed conversion tables, especially for non-standard or special materials. To solve this issue, this tester allows users to generate their own exclusive hardness conversion tables through comparative testing. By comparing the tester’s readings with standard reference values of specific materials, users can calibrate the conversion logic, ensuring that subsequent measurements for that material are highly accurate—this feature significantly expands the instrument’s application scope, from common metals like carbon steel and aluminum alloy to special materials in the aerospace and automotive industries.

2. Working Principle

The working principle of this pen type Leeb hardness tester (a precision Measuring Testing Instrument from Mikrosize supplier) is based on the rebound effect of the impact body. Under the action of elastic force, an impact body of specified quality is propelled to hit the surface of the specimen at a certain speed. When the impact body is 1mm away from the specimen’s surface, the instrument detects both the impact speed (VA) and the rebound speed (VB) of the impact body. The Leeb hardness value (HL) is then calculated using the following formula:

HL = 1000 × VB / VA

Where:

HL = Leeb hardness value (the core parameter measured by this Measuring Testing Instrument);

VB = Rebound speed of the impact body (detected by high-precision sensors inside the tester);

VA = Impact velocity of the impactor (calibrated during production to ensure consistency).

This principle ensures that the tester can quickly and non-destructively measure the hardness of various metal specimens, with results that are comparable to laboratory-grade testing equipment—an advantage that Mikrosize supplier highlights in its product development, aiming to bridge the gap between on-site convenience and testing accuracy.

3. Product Features

Excellent Portability and Ergonomics: The product has a compact size and lightweight design, making it easy to carry in a toolbox or backpack. The one-handed operation capability reduces operator fatigue during long-term testing, a key consideration in the design of this Measuring Testing Instrument by Mikrosize supplier.

High-Quality Display: Adopting a 128 × 64 dot matrix OLED display screen, the instrument offers excellent contrast and visibility. Even in bright sunlight or dim indoor environments, users can clearly read measurement values, material names, and battery status—this display quality is a hallmark of Mikrosize supplier’s commitment to user experience.

Material Customization Function: As mentioned earlier, users can generate exclusive hardness conversion tables through comparative experiments. This function solves the inaccuracy problem of pre-installed tables, making the tester suitable for testing special materials in niche industries—further solidifying its position as a versatile Measuring Testing Instrument.

Automatic Impact Direction Recognition: The instrument is equipped with a sensor that automatically recognizes common impact directions (such as vertical, horizontal, and downward). This eliminates the need for manual adjustment, ensuring accurate measurements regardless of the testing angle—a feature that enhances the efficiency of on-site testing.

Data Storage Capacity: It can store the average value of up to 100 measurements, allowing users to review historical data without connecting to external devices. This is particularly useful for batch testing, where multiple specimens need to be tested consecutively.

Hardness Limit Alarm: Users can pre-set upper and lower limits for hardness values. If a measurement result exceeds the set range, the instrument will issue an audible or visual prompt, helping users quickly identify non-conforming specimens during batch testing.

Multi-Standard Conversion: The tester can be switched to a foreign hardness conversion table (such as Rockwell, Brinell, or Vickers) as a reference for hardness conversion. This allows users to compare results with international standards, making the instrument suitable for global projects.

Indication Calibration: Equipped with a software calibration function for indication, users can easily calibrate the instrument using standard test blocks, ensuring long-term measurement accuracy—Mikrosize supplier provides detailed calibration guidelines to help users perform this operation correctly.

Wireless Data Output: In addition to Bluetooth printing, the instrument can connect to a dedicated measurement app on a smartphone via Bluetooth (optional). The app offers advanced functions such as data plotting, report generation, and cloud storage, expanding the capabilities of this Measuring Testing Instrument.

Intelligent Power Management: It has an automatic shutdown function, and the duration of automatic shutdown can be adjusted (from 1 to 10 minutes) or the function can be turned off. This helps save battery power when the instrument is not in use.

Long-Lasting Battery: Built in a rechargeable lithium battery with no memory effect, the instrument uses a Type-C socket for charging—this universal charging interface makes it easy to charge using common mobile phone chargers or power banks. A full charge can support up to 8 hours of continuous testing, meeting the needs of all-day on-site work.

As a leading Measuring Testing Instrument provided by Mikrosize supplier, this pen type Leeb hardness tester combines portability, accuracy, and versatility, making it an ideal choice for industries such as power, machinery, automotive, and aerospace. Whether for routine maintenance, quality inspection, or product development, it delivers reliable and efficient hardness testing solutions.