Cobia Dental


Choose the Cobia Dental for Intraoral and CBCT measurements. A simple-to-use meter for a routine inspection of Intraoral and CBCT X-ray equipment in dental clinics. Especially suitable for acceptance tests, constancy tests, and routine quality control.

Measures kV, Dose, Dose rate, Time, Total Filtration, and HVL.

Cobia comes with Bluetooth and USB connectivity which makes it possible to use it together with the Ocean™ software on a laptop or tablet PC.

Included: Internal display, internal rechargeable battery, micro-USB cable, power supply, Ocean software with Connect license, documentation, and soft-shell transport case.

Please note! Not suitable for dental panoramic X-ray tubes.

Art. No.: 9764003-00

All prices include freight cost. Pricing does not include Applicable Taxes or Customs Fees.

Easy and simple QA for Dental

The Cobia Dental has rapidly risen in popularity among dental engineers, physicists, and managers all over the world.

The solution is the first choice for fast and easy Intraoral and CBCT system testing, service, and maintenance in a compact and lightweight portable kit. Measurements are displayed directly on the integrated screen and transmitted wireless straight to your Ocean software for easy storage and analysis.

It is a simple-to-use meter for checking that the output from the Dental Intraoral X-ray tube is correct. Since the Cobia is so easy to position and doesn’t require any complicated settings, anyone who works in the dental clinic can quickly and easily perform the routine inspection of the intraoral X-ray equipment. To determine patient safety – every day.

Everyday “check ups”

The Cobia Dental is especially suitable for acceptance tests, constancy tests, and routine quality control of Intraoral X-rays. The basic need for a dental clinic calibration check of kV and exposure time is covered with the standard kV model of Cobia Dental. With a small addition to price, dose, total filtration, and HVL measuring will also be included.

Ease of use

Cobia Dental is designed for “ease of use” which is accomplished through easy positioning and possibilities to choose your preferred language together with a powerful and clear color display. The screen is rotatable and is easy to read from a distance, and your 100 latest measurements will always be automatically saved.

Rotatable color display

A clear and rotatable color display, so you can read off measurement results fast and easily – even from a distance. The innovative display even shows the results the right way up in measurement situations where the instrument needs to be positioned upside down.

Cobia Dental in different languages

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

RTI Dental solutions

Cobia Dental is designed to be the meter used by the dental clinic staff. For more advanced QA of Dental X-ray equipment, RTI recommends our multimeter – the RTI Piranha – together with our QA software Ocean.

Cobia Dental Key features

  • Easy to position, no position dependence
  • Large rotatable display
  • Log/History function
  • Plug n Play
  • Pulsed radiation analysis
  • Full Auto range for kV, TF, and Sensitivity
  • Bluetooth and USB communication
  • Solid-state detectors = no need to compensate for temperature & pressure
  • Built-in energy compensation
  • Long-lasting rechargeable battery
  • Always free firmware upgrades
  • Up to ten-year warranty
  • Two-year Calibration Cycle

Cobia Smart General

  • 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, 320x240 pixel
  • Min. Exp. Time
    0.1 ms
  • Sensitivity
    0.2 mA @ 50 kV, 50 cm (3mm Al)
  • Warranty
    Two years
  • Extended Warranty
    Up to ten years
  • Calibration Cycle
    Two years
  • Standard
    Complies with relevant parts of the standards IEC 61674 and IEC 61676 for dosimetric instruments
  • PTB Approval

Cobia Smart Measuring Parameters

  • Tube volt.
    38 – 155 kVp (±2 %)
  • Time
    0 ms – 9999 s (±1 % or ±0.33 ms). 3 – 9999 pulses
  • Dose
    70 nGy–1700 Gy (±5 %). 8 μR – 200 kR (±5 %)
  • Dose Rate
    2.5 µGy/s – 175 mGy/s (±5 % or ±200 nGy/s). 0.3 mR/s – 20 R/s (±5 % or ±2 μR/s). 17 mR/min – 1200 R/min (±5 % or ±0.1 mR/min). 1 R/h – 70 kR/h (±5 % or ±70 mR/h).
  • Auto-Comp.
    1.0 – 90 mm Al Total Filtr. equiv.
  • HVL
    1.2 – 14 mm Al (±10 % or ±0.2 mm)
  • Total Filtration
    1.0 – 90 mm Al (±10 % or ±0.3 mm Al)
  • Pulse frequency
    1/6 – 260 Hz (±1 % or ±0.2 Hz)
  • Dose/pulse
    10 nGy/p – 600 mGy/p (±5 %). 1.1 µR/p – 66 R/p (±5 %)
  • Effective time
    0 ms – 9999 s (±1 % or ±0.33 ms)

Cobia Smart Selection Chart

  • Time
    R/F – kV & Dose
  • kV
    R/F – kV & Dose
  • Dose
    R/F – kV & Dose
  • Dose Rate
    R/F – kV & Dose
  • HVL
    R/F – kV & Dose
  • Total Filtration
    R/F – kV & Dose
  • Pulses
    R/F – kV & Dose
  • Pulse Rate
    R/F – kV & Dose
  • Dose/Pulse
    R/F – kV & Dose
  • Eff.time
    R/F – kV & Dose
  • Soft Shell case
    R/F – kV & Dose


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

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 tasks that may arise. Here you will also find instructions on how to measure 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 suit 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