Xenon Radiation Detectors
Constellation is developing a range of xenon gamma-ray radiation detection products, some of which are in prototype stage.

Detectors aboard Unmanned Vehicles
Constellation is developing a monitoring system capability for unmannned vehicles. A prototype nuclear radiation detection system has been successfully flown on an unmanned helicopter.

Mercuric Iodide Photodetector Radiation Detectors
Constellation is developing  a mercuric iodide gamma-ray photodetector.