Cobia Sense

Offers the ability to connect different probes and ion chambers, thereby enabling measurement in a wide variety of situations. The measured values can be read directly from the large and clear display, and are stored in the Cobia Sense for later viewing.

Cobia Sense

The Cobia Sense offers you a convenient way to make the regular constancy checks of your X-ray equipment as quick and as accurate as possible.

Cobia Sense is dedicated for use with an external detector such as RTI Dose Probe, Light Probe, RTI CT Ion Chamber, or external mAs probes. The wide selection of external probes enables big flexibility in the performance of regular constancy checks for most modalities. The measured values can be read directly from the large and clear display, and are stored in the Cobia Sense for later viewing.

As the newest member of the Cobia family, Cobia Sense has the same form factor and large display which features the Cobia’s familiar and easy-to-navigate menu structure. It is targeted for routine constancy checks, with the ambition to make those tasks quick and easy.

Thanks to the “Plug n Play” functionality, the Cobia Sense will automatically recognize the different detectors you connect and instantly be ready for your measurements. This, together with the easy-to-read display, is why the Cobia Sense is also the perfect tool for untrained users.

With Cobia Sense there is no need to reset between your measurements, so you can remain in the control room until everything is completed. The practical data log allows you to store measurements for later viewing.

Cobia Sense in different languages

As well as English, you can choose to run your Cobia Sense in several languages such as Chinese, French, German, Japanese, Russian, Spanish, Swedish, and Turkish. This can easily be selected via the Cobia menu and we constantly update with more languages.

Cobia Sense key features

  • Connects most RTI probes
  • Large rotatable display
  • Plug-and-Play
  • Long-lasting rechargeable battery
  • Can be used for all modalities
  • Two-year calibration cycle
  • Can be used with ion chambers
  • Data logging
  • Recognizes external probes automatically
  • Free firmware updates via Internet
  • Up to 10 years warranty

Cobia Sense Base Unit

  • Weight Approx
    290 g
  • Size
    138 x 76 x 27 mm³
  • Power source
    Int. battery / ext. power supply
  • Battery life
    10 – 20 hours
  • Display
    Color, 320 x 240 pixel
  • Min. exp. time
    0.1 ms
  • Warranty
    2 years
  • Extended Warranty
    Up to 10 years
  • Calibration Cycle
    2 years
  • Standard
    Complies with relevant parts of the standards IEC 61674 and IEC 61676 for dosimetric instruments
  • PTB Approval

Cobia Sense Measuring Parameters

  • Time
    0 ms – 2000 s (±1 % or ±0.33 ms)
    3 – 9999 pulses
  • Dose
    5 nGy - 2 kGy. 0.6 µR - 250 kR (±5%)
  • Dose rate
    0.2 µGy/s - 200 mGy/s. 1.5 mR/min - 1.5 kR/min (±5%)
  • Dose per pulse
    1 nGy/pulse - 1600 mGy/pulse. 0.1 µR/pulse - 180 R/pulse (±5%)
  • Backscatter protected

Article nr

  • Cobia Sense w. RTI Dose Probe



1. Do you have the latest software?
It is always good to have the latest update for your instrument. This is because we continuously fix bugs and make improvements.

2. Have you read our FAQ?
For the most common application and measurement issues, we have collected the answers in one place, please visit our FAQ page. This is so that you will get a quick answer to your question.

3. Have you checked the application notes?
In our application notes, you will find answers, solutions and tips for some specific measuring task that may arise. Here you will also find instructions on how to measure on some unusual X-ray machines and new measuring set-up.

4. Contact your local distributor
Your local representative – our extension in the world – is an expert on RTI’s products and can help you to answer your questions and support you. This way you can get help in your time zone and in your own language.

5. Contact us
We encourage you to contact us if you have questions or problems. We are here to help you and be your partner in your everyday working life.

Product configuration

Which RTI Solution suits your needs? RTI offers complete quality assurance solutions for all types of X-ray equipment.

To be able to find out which instrument and solution suits you, we need to know a few things about you and your measurement situation. Please fill out this form, and we will get back to you with a product suggestion.

Contact Information

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Selected partners

PTB is Germany's National Metrology Institute and handles scientific and technical service tasks. With metrology as the PTB's core competence, the organisation's goal is to measure with the highest accuracy and reliability. PTB represents progress and reliability in metrology for the benefit of society, trade and industry, and science.
The ANSI National Accreditation Board (ANAB) is the largest multi-disciplinary accreditation body in North America. ANAB accredits the full spectrum of conformity assessment bodies, including calibration, testing and inspection.
The International Electrotechnical Commission (IEC) is the world’s leading organization that prepares and publishes International Standards for all electrical, electronic and related technologies.
AAPM is a scientific and professional organization, composed of more than 8000 scientists, whose primary goal is the identification and implementation of improvements in patient safety for the medical use of radiation in imaging and radiation therapy.