The high accuracy distance sensor with radar reliability.
Featuring Profinet & real-time output rate.
Radar distance sensor with micrometer accuracy.
Fast & precise measurements in harsh environments.
The OndoSense apex is a high accuracy distance sensor offering precise, fast and reliable measurements. Based on advanced radar technology, the robust sensor is perfectly suited for automation in harsh industrial environments with dust, smoke, steam, rain, heat, vibrations, poor lighting conditions or rough surfaces. With its unique measurement precision of ±1 µm, its real-time measurement rate of 500 Hz and a powerful Profinet interface for easy integration into the machine control system (PLC), the OndoSense apex opens up new areas of applications in which measurement technology has not previously been used. The radar sensor's application spectrum ranges from micrometer-precise distance measurements and complex dimensional measurements to high accuracy throughput or level measurements and even the position determination of hidden objects.
The unique performance, user-friendliness and reliability of the OndoSense apex radar sensor for high accuracy distance measurement are not only based on in-depth industrial experience. They are also the result of the long-standing radar expertise of the OndoSense founders and their radar research work as former Fraunhofer associates. Discover our radar-based precision distance sensor and benefit from its unique performance and reliability.
Micrometer precision, fast measurements & more.
Discover the advantages of our radar for high accuracy distance measurement.
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Micrometer precision
The OndoSense apex radar distance sensor offers an accuracy in the micrometer range: Profit from a unique measurement precision of up to ±1 µm with a linearity of up to ±300 µm! -
Real-time measuring rate
In some applications, the measurement speed can be decisive: With up to 500 Hz, the OndoSense apex high accuracy distance sensor offers a real-time capable measurement rate.
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Profinet interface
With Profinet, you can integrate the radar sensor quickly and easily into the PLC. You can also use an analog current interface (4-20 mA) and three digital switching outputs (3x push-pull).
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Very narrow opening angle
Featuring an opening angle of only ±1.5 °, which is very narrow for radar sensors, our high accuracy distance sensor enables focused and reliable measurements with minimal interference.
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Wide measuring range
OndoSense apex is great choice for close-range measurements. In addition, the precision distance sensor offers a wide measuring range from 0.1 m to 6 m (long range version: 0.3 m to 40 m).
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Attractive & practical UI
Our browser-based configuration software offers a user-friendly GUI with many practical features – e. g. the "Peak Finder", which lets you select the peak that corresponds to your target object very easily.
Large application range.
Our radar sensor for high accuracy distance measurement offers many applications.
Precise dimensional measurement of metal
Width measurement of semi-finished steel or other metal products in cold or hot rolling mills.
Thickness measurement of slabs, steel beams, long and flat steel in the rolling mill.
Level measurement & throughput measurement
Contactless level control of molten metal at temperatures of up to 1600 degrees Celsius.
High-precision bulk material height measurement on the conveyor for throughput or point level measurement.
Positioning of machines and objects
Precise positioning of steel or metal strips in the color coating line.
Position control of cranes or crane booms for collision avoidance.
Monitoring μm-range distance changes
Continuous monitoring of the structural integrity of buildings or infrastructures.
Condition monitoring of bridges by analyzing the deflection under load.
Condition or status control via switching outputs
Configuration of 3 push-pull outputs for the classification and detection of objects
2 control modes: single point (1 switching point) & window function (2 switching points)
Optimized output stability through hysteresis – e.g. in case of unsteady distance measurements in the vicinity of the switching point
Robust & reliable radar.
Our high accuracy distance measurement sensor is immune to dust, smoke, rain or adverse light.
The OndoSense apex precision distance sensor stands for highly precise and reliable measurement results – even with dirt, smoke, steam, rain, snow, poor lighting conditions, flashes of light or rough surfaces. Furthermore, with its dust-tight, jet-proof housing (IP 67) and its resistant PTFE lens, the robust radar sensor is an ideal choice for challenging production environments.
You would like to use our radar sensor for high accuracy distance measurement in extreme conditions – e. g. in the metal industry? No problem! Just order our heavy-duty housings for maximum protection. These enables reliable measurement results even in the harshest settings.
Fog & smoke: no impact
Heat & flashes: no impact
Dust & dirt: no impact
Vibration & noise: no impact
Technical data
OndoSense apex | |
Radar frequency | 122 GHz |
Opening angle | ±1,5 ° |
Measurement range | 0.1 – 6 m (standard range) |
Measurement rate | 500 Hz |
Linearity | up to ±300 µm |
Repeatability | ±100 µm (standard) ±1 µm (high precision modus) |
Communication interface | Profinet RT |
Analog output | Current loop (4 – 20 mA) |
Switching output | 3x push-pull (PNP/NPN) |
Protection class | IP67 |
Contact us now for a quote or further information.
Let's prepare the successful rollout of your high accuracy distance sensor – in 3 steps.
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1. Expert advice: Planning your use case
During a call, our team of experts will give you in-depth advice and determine the optimal rollout of your radar sensors. Together, we will elaborate a plan for your use case.
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2. Quote & plan: within 24 hours.
Following our exchange, you will receive your individual quote within one working day. In addition, if required, we will prepare a time and project plan for your undertaking.
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3. Delivery & continuous support
The first few weeks are crucial for success. After the delivery of your sensors, our team of experts will continuously support you in the implementation of your project – remotely or, if needed, on site.


