Comparison of the measuring devices Loresta GX and Loresta FX

Comparison of measuring range, functions and areas of application

Choosing the right resistivity meter significantly determines the quality and reproducibility of your measurement results in research, development, and production. With the Loresta GX II and the Loresta FX Utilize two powerful systems specifically designed to meet different requirements in electrical resistance measurement.

Use the Loresta GX II for high-precision, stationary measurements in the laboratory when maximum accuracy and process reliability are required. For flexible and rapid testing directly in production or quality assurance, the Loresta FX offers the ideal solution as a mobile handheld measuring device.

Differences in application area

Loresta GX II – For laboratory, development and standards-compliant testing

Loresta GX II measuring device – For laboratory, development and standards-compliant testing — Resistance measurement on conductors and semiconductors using 4-point technology

The Loresta GX II is a stationary tabletop device for applications where maximum accuracy and reproducibility The focus is on [the main focus]. Typical areas of application include:

Research and Development
Material characterization
Quality assurance with documentation requirements
Standard tests (e.g. ASTM, JIS)

Thanks to automated functions and stable measurement conditions, the device is ideally suited for demanding testing processes.

Loresta FX – For production and flexible measurement tasks

Measurement of surface resistance of a material sample using a handheld device — Handheld measuring device Loresta-FX

The Loresta FX was designed for the mobile use developed and is particularly suitable for:

In-line and incoming goods inspections
Production-related inspections
Fast on-site measurements
Service and field operations

Thanks to its compact design and battery operation, the device enables efficient measurements directly at the point of use.

Technical comparison overview

Criterion	Loresta GX II (MCP-T700)	Loresta FX (MCP-T380)
device type	Stationary tabletop device	mobile hand-held measuring device
Measurement method	4-point measurement method, constant current	4-pin measuring head, constant current
Measuring range	10⁻⁴ – 10⁷ Ω·cm	10⁻² – 10⁶ Ω
measurement functions	Auto hold, timer, silicone mode	Standard measurement
Correction factor	Automatic	Manual
Display	7,5″ TFT touchscreen	LCD
Data Management	USB	Internal storage, USB-C
Mobility	Stationary	Highly mobile

Measurement accuracy and ease of use

A key difference lies in the Automation and measurement safety:

The Loresta GX II supports the user through integrated evaluation functions and stored measurement models, thereby simplifying the determination of specific resistance values and reducing user-related errors.
With the Loresta FX, the evaluation of the measurement results is more user-guided, which is sufficient especially for simple testing tasks in production.

Measuring heads and probe technology – crucial for precise measurement results

ASP 4-pin measuring head for 4-point resistance measurement with Loresta GX — 4-point measuring head for precise resistance measurement

Besides the measuring device itself, the choice of the right measuring head plays a central role in the quality and reliability of the measurement results. Different probes are used depending on the material, geometry, and application.

The Loresta GX II supports a wide range of specialized measuring heads optimized for different materials and measurement tasks. These include, among others: 4-point probes for thin films and coatings as well as measuring heads for volumetric applications. This allows the system to be flexibly adapted to complex testing requirements in the laboratory.
The Loresta FX is typically used with compact 4-pin measuring heads Used are devices that are particularly suitable for fast and reproducible measurements in production. The focus here is on easy handling and quick deployment.

The right combination of measuring device and measuring head enables a application-specific optimization of the measurement and is crucial for reliable results – especially with materials that have highly variable electrical properties.

When which device is the right choice

Loresta GX II is the right choice if:

The highest measurement accuracy is required
Measurement results must be documented and compliant with standards.
complex materials are analyzed
Measurement processes should be standardized and reproducible.

Loresta FX is the right choice if:

Measurements are taken directly in production.
Mobility and speed are crucial
Quick quality decisions need to be made.
A robust and easy-to-use device is needed.

Conclusion: Two systems for different requirements

The Loresta GX II and the Loresta FX are not competing, but complementary measurement systems:

Loresta GX II → maximum precision and process reliability in the laboratory
Loresta FX → maximum flexibility and efficiency in the field

Companies that cover both development and production processes often benefit from combining both systems to ensure consistently reliable measurement results.

Consulting and application support

Are you unsure which measuring device is suitable for your application?
We support you in selecting the optimal solution for your specific requirements – from material analysis to integration into your testing processes.