Multifunctional small-sized scintillation spectrometer to detect and identify gamma radiation radionuclides, search neutron radiation sources, measure gamma radiation energy distribution and ambient gamma radiation dose equivalent rate and alpha and beta radiation flux density. Features - Neutron (AT6102 only), alpha and beta radiation sources search and detection with audible, visual and vibratory signalizing - Standard and expert operation modes - Built-in continuous automatic LED stabilization of the energy scale and its periodical calibration using a KCl check sample - Digital temperature compensation of the measuring path by an internal temperature sensor - Audible and visual alarm at identifying gamma radiation radionuclides, at dose rate and flux density threshold exceeding - Spectrometric data readout on a backlit LCD 128x64 - Logging up to 300 spectra - Wide- temperature operation under field conditions - Data transfer to PC - Alpha or beta radiation flux density measurement by external smart probes BDPA-01 or BDPB-01