D-tect Radiation Detection Products - Rugged, Sensitive and Easy to Use
MiniRad-D - Personal Radiation Detector


Need a fixed-position radiation detection solution? The Rad-D is a fixed-position radiation detector that is used to monitor doorways, driveways, and loading docks. A versatile device, it senses gamma and neutron detection in under a second and can trigger active responses such as halting conveyor belts or lowering a blockade.

A major advantage that the Rad-D has over competing systems is that it is compact and can be mounted anywhere. Each Rad-D system comes equipped with a Bluetooth wireless link and can support four detectors – operating simultaneously – each up to 150 feet away from the display electronics. The detectors are available for purchase as either omni-directional or uni-directional. The uni-directional version ensures that the unit is triggered only by what is directly in front of it, not by what is in the next traffic lane or on a parallel conveyor belt.

Like the MiniRad-D, the Rad-D is extremely user-friendly. It provides the operator with a single digit read on a scale of “1” to a “9” to show the strength of the detected radiation. The Rad-D also shows the actual count of photons or neutrons and automatically calibrates itself to the natural background radiation environment to maximize its detection sensitivity.

Secure your factory, loading dock, or entryway with this sensitive and efficient D-tect Systems product.

For more information, click here for the Rad-D Brochure.


Mission Fixed-position radiation detector
Radiation Detector 2" x 3" NaI(Tl) detector with PMT, He3 neutron detector
Energy Range 40 keV - 3 MeV
Display Large, intense LED displays
Power 110V AC or 220V AC
Notification .03 mR/hr above background radiation (audio/LED)
Response Time < 1 Second
Calibration Automatic
Dimensions Detectors: 5" diam x 17.5"
Display box: 6.75" x 4.2" x 3"
Weight Detectors: with lead shielding 27.5 lbs
no shielding 8.5 lbs
Display box: 1.5 lbs
Environment Controlled environment or weather sealed, operates in high RF environments
Warranty 2 years parts and labor

Manual - Brochure

D-tect Radiation Detection Products - Rugged, Sensitive and Easy to Use