The GT2 is a “stand-off” sensor that detects

radiation in designated areas and, via

Defentect’s DM3™ software, notifies required

personnel of a radiological event. The

Power-over-Ethernet (PoE) sensor enables

remote monitoring, real-time alerts and

browser-based management. PoE enables

easy installation.

GT4 combines passive surveillance with active

alarms. Using advanced algorithms, including

time-slicing and pattern-recognition techniques,

it can detect threats in as little as one second

and provide highly accurate isotopic

identification in only a few seconds more.

Temperature stabilization guarantees accurate

identification results in less than one minute

after a power-up, even after a lengthy powerdown.

The GT4 provides indication of multiple

radionuclide's concurrently within one second

Multiple identification techniques are used,

including peak fitting, least squares analysis,

and expert-systems approaches. Special

Nuclear Material (SNM) detection can be added

to the GT4 with a neutron detection option.

Calibration stabilization and watertight housing

make the GT4 functional in all weather

conditions, while automatic background updates

provides reduced maintenance costs.

During a radiological event above a preset

threshold, isotope ID, confidence level, count

and date/time stamp are sent to the DM3

messaging system.

· ANSI N42.42 compliant data format Auto

· Background subtraction

· Remote access

· NEMA IV Security Enclosure (illustration

· 3” x 3” NaI Detector (LaBr optional)