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OndoSense apex radar sensor logo

OndoSense apex radar distance sensor.

Precision distance sensor for harsh environments. Radar-based.

OndoSense apex radar distance sensor: ultra-precise & reliable

With our radar distance sensor you will get even more than maximum accuracy and extremely robust radar technology. The smart OndoSense apex radar sensor for distance measurement offers great configuration features, a unique range of applications and a wide range. Benefit from an innovative radar sensor technology that combines ultra-high precision and great usability!

The unique performance, user-friendliness and reliability of the OndoSense apex radar distance sensor are based on in-depth industrial experience and many years of radar expertise of the OndoSense founders and former Fraunhofer associates. Profit from our new distance radar and discover a unique industrial radar sensor that simply offers more!

OndoSense apex radar sensor logo

Micrometer accuracy, fast measurements & more radar advantages.

Our radar distance sensor offers the highest precision and speed, a wide range – and much more.

Features of the OndoSense apex radar distance sensor

Micrometer precision

The OndoSense apex radar distance sensor offers a measurement accuracy in the micrometer range: Benefit from a unique measurement precision of up to ±1 µm with a linearity error of only ±300 µm!

High measuring rate

In some applications, the measurement speed can be decisive: With our OndoSense apex radar distance sensor, you will benefit from the highest measurement rate with up to 300 Hz.

Very narrow opening angle

With an opening angle of only ±2 °, which is very narrow for radar sensors, our precise distance sensor enables focused and reliable measurements with minimal interference.

Established interfaces

Benefit from high-performance industrial interfaces for data transmission: analog current loop (4–20 mA), digital switching outputs (3x push-pull), serial (RS485) and Profinet (via gateway).

Wide measuring range

Our high-precision radar distance sensor is great for close-range measurements. In addition, the OndoSense apex offers a wide measuring range from 0.1 m to 6 m (long range version: 0.3 m to 40 m).

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.

OndoSense apex radar sensor logo

Large application range of our radar sensor.

Our smart radar distance sensor supports numerous applications in a wide range of industries.

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 of the bridge 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

Industry range of our radar sensor

Metal & steel industry


Mechanical & plant engineering


Mining industry


Transport & logistics


Shipping & offshore




Energy sector


...other industries

OndoSense apex radar sensor logo

Robust & reliable radar sensor.

Our radar distance sensor is insensitive to dust, smoke, fog, rain or adverse light.

High precision radar sensor for distance measurement - OndoSense apex

The OndoSense apex radar 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. With its dust-tight, jet-proof housing (IP 67) and its resistant PTFE lens, our robust radar distance sensor is the ideal choice for challenging production environments.

You would like to use our radar sensor for distance measurements in extreme conditions – e. g. in the metal industry? No problem! Our optional heavy-duty housing offers maximum protection via a connection for water cooling. This enables reliable measurement results even in the harshest settings.

Lights & flashes: no influence

Our radar distance sensor is insensitive to lights & flashes

Dust & smoke: no influence

Our radar distance sensor is insensitive to dust & smoke

Rain & snow: no influence

Our radar distance sensor is insensitive to rain & snow

Heat & cold: no influence

Our radar distance sensor is insensitive to heat & cold
OndoSense apex radar sensor logo

Technical data

OndoSense apex

Radar frequency

122 GHz

Opening angle

±2 °

Measurement range

0.1 – 6 m (standard range)
0.3 – 40 m (long range)

Measurement rate

300 Hz

Output rate

10 ms / 100 Hz

Measurement accuracy

up to ±300 µm

Measurement precision

±100 µm (standard)

±1 µm (high precision modus)

Communication interface

RS485; Profinet and other interfaces via gateway

Analog output

Current loop (4 – 20 mA)

Switching output

3x push-pull (PNP/NPN)

Protection class


Dimensions of OndoSense apex radar distance sensor - side view.
Dimensions of OndoSense apex radar distance sensor - front view.
Dimensions of OndoSense apex radar distance sensor - rear view.

Contact us now for a quote or further information.

Let's prepare the successful rollout of your radar distance sensors – in 3 steps.

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.

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.

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.