NuVISION is a compact portable spectrometric gamma camera based on CZT semiconducting detectors and coded aperture AND Compton imaging capabilities. The aim is to provide endusers with a complete portable and sensitive system allowing them to not only detect but also measure a dose rate in H*(10), localize the source and identify the radioisotope, thanks to excellent spectrometric ability on a wide energy range (20-1400 keV ; from Am-241 to Co-60). Additionally, the processing speed allows to perform real-time imaging and to observe mobile sources.