Detection unit Monolith consist from the following integrated components:
- HPGe detector
- Preamplifier
- Autonomous cooling system for the detector based on electrical machinery cooler EMC
- Controller for controlling the operation of EMC
- Fans (2-4) for EMC cooling

Features
- 10% – 160% efficiency HPGe p-type coaxial detectors are available;
- Energy range from 40 keV to 10 MeV for GCD model;
- Energy range from 3 keV to 10 MeV for GCDX/GCDX-OS models;
- High efficiency of radiation detection;
- High energy rate up to 200000 MeV/sec;
- Excellent peak symmetry;
- Detection of radiation in any spatial orientation depending on cryostat modification;
- Manufacture in a portable cryostat is possible;
- Low background and Ultra – low background materials are available;
- Doesn’t require a full thermal cycle after an unexpected shutdown.