• No gas-filled or gas flow proportional detector required • 2 in 1 instrument: α- and β-/γcontamination measurement with only one detector, no detector change required • Large detection area allowing quick monitoring of large surfaces • Combination of rugged design and high efficiency • Ergonomic housing design, very light one hand instrument • Possibility to subtract background to get net counts • User-friendly menu structure, operation by means of 5 function buttons.