RTI is a world-leading manufacturer of X-ray Quality Assurance (QA) solutions for diagnostic radiology. Since introducing the first X-ray QA system in 1982, we have continued to lead the industry through innovation, ensuring safe, accurate, and optimized imaging across all modalities, from Radiography and Fluoroscopy to CT, Dental, Mammography, and Interventional.
From DIGI-X, to the Barracuda, which introduced the world’s first handheld display in 2001, and the Piranha, we have consistently led with innovation. While others now chase all-in-one solutions, we have delivered them for 45 years, setting the standard in both hardware and software.
Wireless and future-ready, Mako was already groundbreaking when launched late 2023. Now, with the new app-powered and wireless Mako Display, it goes even further, delivering the fastest, simplest, and most modern solution on the market.
RTI’s hardware and software, including the Ocean Next™ QA platform, are trusted by hospitals, X-ray equipment manufacturers, service providers, and authorities worldwide. With R&D and manufacturing in Sweden, service labs in Sweden and the USA, and sales offices in Europe, America, and Asia, we provide high-quality calibration, fast support, and responsive global service through nearly 100 distributors.
RTI began in 1981 with one goal: to advance X-ray quality assurance through true innovation. From the early DIGI-X, to the Barracuda in 2001, the first handheld display on the market and later the Piranha, we’ve spent over 40 years leading with all-in-one solutions long before others followed.
In 2023, we introduced Mako, our most advanced meter yet, built on a decade of focused development and a legacy of precision. And in 2025, we took the next step with the first app-powered, wireless display — making Mako even faster, more flexible, and future-proof.
Innovation has always defined us. With Mako, it continues to define the future of X-ray QA.
Elin Sahlberg, CEO at RTI Group
As part of a student team at Chalmers University of Technology, Gothenburg, Sweden., Lars Herrnsdorf and Ulf Toll, our company cofounders, developed one of the first non-invasive kVp meters in the world.
▪ Lars and Ulf formed Innova Electronics.
The beginnings of RTI!
▪ ‘Innova’ produced VRH 01, the first commercial wind speed meter used to determine suitable locations for wind turbines as an alternative energy source.
▪ After a company name change, RTI Electronics AB. was founded.
▪ In 1982, the Digi-X was launched – a state-of-the-art QC and first commercially available X-ray multimeter to measure non-invasive kV.
RTI signed its first distributor agreements to export the Digi-X.
The multimeter was delivered until 1995.
Mini-X was launched as the first self-contained kVp/time meter. Four Mini-X models were subsequently developed until 1991.
RTI exhibited at RSNA Chicago for the first time.
The PMX-II was introduced as the first all-in-one meter to measure both Rad and Mammo.
▪ oRTIgo unveiled as the first X-ray QA software to automatically collect data, perform analysis, and create a report.
▪ PMX-III launched - the first X-ray multimeter to use a solid-state detector for dose measurements. Available until 2002.
The Solidose 100/200 was introduced as the first dosimeter to use both solid-state and ion chambers.
▪ Visi-X, the first film-less radiation/light field analyzer was launched.
▪ MAS-2 unveiled. It was the first non-invasive mAs probe for X-ray QA.
▪ The Solidose 300 digital dosemeter (dose and dose rate) was introduced.
▪ The first light probe connects directly to an X-ray Multimeter.
RFM (Real-Time Focus Meter), the first electronic focal spot measuring device, was launched.
oRTIgo for Windows operating system was released.
The Barracuda platform was launched, with the first systems shipped to AGFA Healthcare Corporation, Greenville, SC, USA. It was the first X-ray multimeter to measure kVp, dose, dose rate, time, dose/pulse, pulse rate, mA, mAs, TF, and HVL in one exposure, on all modalities!
▪ The mAs-3 was launched. It is the first non-invasive mAs probe to measure low currents during Fluoro.
▪ The last PMX-III was delivered.
Many still come in for recalibration 20 years later.
The Barracuda became the first wireless X-ray platform.
We still receive these distinctive red units for service and calibration.
▪ A US office opened in New Jersey – RTI Group Inc.
▪ We introduced the world’s first commercial tool to measure dose profiles with helical scans – the CT-SD16.
The Red Piranha platform with integrated modules and detectors, supported by the new Windows-based oRTIgo software package.
We introduce the world’s first transparent detector for AEC measurements, the T-20, and also introduce the rotation symmetrical and angle independent point dose detector CT Dose Profiler to replace the CT-SD16.
The first release of our trademark Ocean™ X-ray QA software, replacing oRTIgo.
The Cobia platform was launched to facilitate X-ray Quality Control. Available until 2012.
The Black Piranha premium platform for complete X-ray QA was introduced.
Since its launch in 2001, over 1500 Barracuda units had been delivered.
Ocean Quick Check was released. This was a simpler software application targeting Service Engineers.
We open APAC market operations in Singapore – RTI Group APAC.
RTI Academy launched, providing online and classroom training to meet the X-ray QA needs of our customers, networks, and partners.
▪ At the RSNA Chicago Annual Meeting, held in December, a major company rebrand with a new logo, website, and solutions design were unveiled.
▪ During the year, all Cobias, thus all RTI meters, became wireless.
▪ We launched our own CT Ion Chambers (10 cm & 30 cm).
RTI Group Europe was established with an office in London, UK.
▪ RTI celebrates 40 years since its establishment and the design of the DIGI-X, the first commercially available X-ray Multimeter to measure non-invasive kV.
▪ The RTI Scatter Probe and Ocean Next™ software were released. In December, the RTI Academy classroom was completed and ready for onsite training.
▪ The 40th anniversary of the launch and sale of the RTI DIGI-X meter. A milestone in the history of X-ray safety and QA.
▪ On 10 January, the RTI Academy classroom was officially opened and welcomed its first students.
▪ Launch of our new revolutionary product Mako! The most efficient and accurate meter, with new sensor technology.
▪ Launch of the new Mako Display. App-powered. Wireless. Future ready.
RTI announces the launch of the Mako Display, an app-powered display that enables users to perform X-ray measurements instantly and completely wirelessly on their smartphones or tablets....
PRESSRELEASE
Louisiana Department of Environmental Quality (LDEQ) has selected the RTI Mako to modernize and expand their statewide x-ray inspection capabilities. With Mako systems now supplied to all of LDEQ’s inspectors, this deployment reinforces the Mako’s position as the premium solution for high-performance diagnostic x-ray quality assurance....
PRESSRELEASE
RTI announces record-breaking product sales for June, the second quarter (Q2), and the first half (H1) of 2025. These achievements come despite ongoing global trade tensions and increased macroeconomic uncertainty....
