Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

In industrial condition monitoring systems, accurate and stable measurement of shaft displacement and vibration is essential for maintaining equipment performance and operational safety. The Epro CON021 + PR6423/010-040-CN Eddy Current Sensor is designed to provide high-precision, non-contact measurement using advanced eddy current technology.
This system combines an 8 mm probe (PR6423/010-040-CN) with a signal converter (CON021), enabling reliable monitoring of shaft position, vibration, and dynamic movement. Its compact design and robust construction make it suitable for critical applications where precision and durability are required.
| Parameter | Details |
|---|---|
| Manufacturer | Epro |
| Model | CON021 + PR6423/010-040-CN |
| Product Type | Eddy Current Sensor |
| Sensor Head Diameter | 8 mm |
| Measurement Type | Non-contact displacement / vibration |
| Output Signal | Analog signal (via converter) |
| Sensitivity | 8 V/mm (±5%) |
| Measurement Range | Approx. 2 – 3 mm |
| Frequency Range | 0 – 20,000 Hz |
| Initial Air Gap | Approx. 0.5 mm |
| Operating Temperature | -35°C to +180°C |
| Converter Temperature | -30°C to +100°C |
| Weight | 0.22 kg |
| Installation | Threaded mounting / bracket installation |
| Application | Rotating machinery monitoring |
| Environment | Industrial-grade |
| Reliability | Designed for continuous operation |
The CON021 + PR6423/010-040-CN operates based on the eddy current sensing principle. The probe generates an electromagnetic field that interacts with a conductive target surface such as a rotating shaft.
This allows:
Non-contact measurement of displacement and vibration
Detection of shaft position, eccentricity, and movement
High-speed response to dynamic changes
Stable operation in harsh industrial environments
Variations in the distance between the probe and the target are converted into electrical signals by the CON021 converter, enabling accurate real-time monitoring and analysis.
This sensor system is a key component in machinery protection and condition monitoring systems, supporting:
Turbine and compressor monitoring
Shaft displacement measurement
Vibration monitoring systems
Equipment protection systems
It enables early detection of mechanical abnormalities, helping to prevent failures and reduce downtime.
The Epro eddy current sensor is widely used in:
Steam and gas turbines
Compressors and pumps
Power generation plants
Oil and gas processing facilities
Industrial automation systems
Predictive maintenance environments
Its compact 8 mm probe design makes it especially suitable for installations with limited space.
Proper installation ensures accurate and reliable operation:
Mounted near the shaft or conductive surface
Requires precise gap calibration
Connected to CON021 signal converter
Integrated into monitoring or control systems
Must follow alignment and installation standards
Correct installation ensures measurement accuracy and long-term stability.
The CON021 + PR6423/010-040-CN typically works alongside:
Epro monitoring systems
Signal converters and interface modules
Vibration monitoring systems
Control and protection units
Data acquisition systems
These components together form a complete industrial monitoring solution.
Depending on system requirements, the following alternatives may be considered:
| Model | Type | Key Feature | Application |
|---|---|---|---|
| PR6423/010-040-CN | Eddy Current Sensor | 8 mm probe | Compact monitoring |
| PR6424 Series | Eddy Sensor | Medium probe size | General applications |
| PR6426 Series | Eddy Sensor | Large probe size | Extended range |
| CON020 | Signal Converter | Standard processing | General systems |
| Bentley Nevada 3300 Series | Proximity Sensor | Industry-standard | Turbine monitoring |
Compact 8 mm probe for space-constrained installations
Non-contact measurement with no mechanical wear
High precision and fast response
Reliable performance in harsh industrial environments
Designed for continuous industrial operation
Supports predictive maintenance strategies
What is the main function of this sensor?
It measures shaft displacement and vibration using non-contact eddy current technology.
What does the CON021 module do?
It converts probe signals into standardized outputs for monitoring systems.
Where is it typically used?
It is used in turbines, compressors, and other rotating machinery requiring precise monitoring.
The Epro CON021 + PR6423/010-040-CN Eddy Current Sensor (8 mm) is a reliable and high-performance solution for industrial condition monitoring. Its precise sensing capability, compact design, and robust performance make it an essential component in machinery protection systems.
For engineers and maintenance professionals, this sensor system provides a dependable solution for improving equipment reliability, minimizing downtime, and ensuring safe operation in demanding industrial environments.