Georadis RT-21 & RT-22
Compact Hand Held Radiation Detector

The RT-21 and RT-22 SUPER SCINT are a robust and compact series of hand held radiation detectors specifically designed to quickly scan for radioactive materials. Models with NaI or BGO scintillator are available as well as models with an extensible telescopic arm for ease of operation when tall objects are to be scanned.

Quickly determining the location of lost radioactive sources in the environment or scrap, monitoring of waste in hospitals or waste incinerators, scanning people or baggage to disclose illicit trafficking of nuclear materials; all are typical applications for the RT-21 and RT-22 series.

The graphical display shows a histogram of the last 100 measurements to quickly determine the location of the radiation. The RT-21 and RT-22 series have a balanced handle equipped with a single push button, that allows for easy one handed operation.

A loud variable pitch audio tone, proportional to the intensity of the gamma radiation detected, provides eyes free searching. Both trip level for the audio as well as a threshold for danger alarms can be set by using GeoView software package.

Georadis is acknowledged as a foremost producer of innovative radiation detection products, devices and solutions. The built-in Bluetooth connectivity for the RT-22 series allows a GPS location to be integrated with the measurement. Bluetooth also provides access for wireless headsets for audio feedback in high noise areas.

The ruggedness, small size and light weight of these instruments, combined with a choice of very sensitive Gamma Ray scintillation detectors makes the RT-21 and RT-22 series very versatile for quick measurements in a large variety of applications.


The RT-21 and 22 series have an IP65 dust and waterproof, lightweight cast aluminium housing and a detachable plastic boot with shoulder strap for additional protection under harsh environments. The units are powered by a handy quick change battery pack containing four AA type batteries (Alkaline or Rechargeable). A fully automatic charger is integrated in the unit for use with rechargeable (NiCd or NiMH) batteries.

  • RT-21 Product Photo
  • RT-21 Product Photo
  • RT-22 Product Photo
  • Waste Recycling and Incineration plants
  • Scrap metal recycling
  • Security and surveillance operations
  • Hospitals
  • Customs and Border protection
  • Nuclear facilities
  • Research laboratories
  • Production facilities
  • Highest Sensitivity
  • Rugged, Lightweight and Compact design
  • Graphical Display
  • One Button Operation
  • USB connection
  • Bluetooth (RT‐22 only)
  • Weather protected
  • 2 Year Warranty

Manufacturer’s Product Brochure

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