Cayman 403 Non Linear Junction Detector

The Cayman 403 non-linear junction detector is a compact modification of the base model 402. Cayman 403 supports all the operational modes applicable in base model 402. The key difference is the lack of a telescopic bar. This model is especially helpful when working in confined spaces, checking small cargo and mail, as well as the inspection of people. Cayman 403 allows detecting and precisely locating both working devices and non operational devices. The operator is able to distinguish natural semiconductors from artificial ones (metal, corrosion, metal-oxide-metal structure).
Competitive advantages:

The main distinctive feature of the CAYMAN 403 is the multifrequency irradiation mode, which provides a wide range of advantages from other detectors.

  • Increased selectivity (ability to distinguish electronic components with a background of metal-oxide-metal structures);
  • Increased probability of detecting electronic devices behind partially shielded surfaces (such as grid “netting”);
  • Optimal ratio of radiation power and detection range;
  • Ability to identify detected objects in Audio mode;
  • High detection sensitivity at a low output power;
  • Ability for effective operation in a complicated interference environment (reinforced structures, corrosion, etc.).
Updated model has beneficial differences from the previous model:
  • Modernized antenna, which increases detector selectivity;
  • Reduced weight and overall dimensions of the device;
  • Simplified system of control and indication;
  • Use of common power supply batteries;
  • More ergonomic design.
Additional features:
  • Original signal processing algorithm enables reducing false responses and increases the selectivity as well as reaction speed;
  • Software upgrade via USB;
  • Detector is supplied in a shockproof package.
Cayman 400 Technical Characteristics:
Frequency range 2-3 GHz
The maximum radiated peak power Less than 2W
Antenna polarization elliptical
Operating modes “search”, “audio”, “adaptation”
The range of sensitivity adjustment in manual mode 40 dB (5 steps of 8 dB each)
– visual three 16 LEDs bars
– audible built-in speaker, headphones
Power supply 2 Li-ion rechargeable batteries 3,7V (18650 type)
Run time of a fully charged battery 2-3 hours (depending on the operating mode)
Charge time not more than 3 hours
Operating conditions
– temperature +5 … +40 C
– humidity not more than 85% (at 25 C)
weight with battery 0.85 kg
Dimentions when folded 
(lenght, width, height)
220x130x95 mm
Weight of the full set

up to 3.7 kg

Delivery set:



No. in Figure

ST 401 CAYMAN non-linear junction detector



Rechargeable battery 3,7V of type 18650



Power supply charger



Charging unit






Semiconductor simulator (red marking)



Metal-oxide-metal structure
simulator (blue marking)



Operation manual


Transportation shockproof package

  • Contact us for pricing information.
  • 1-year warranty
  • Delivery time – approx. 4 weeks

Specialized Countermeasures and Intelligence Solutions

Contact Us

(416) 414-7231

Mailing Address

5979 Baldwin St. S P.O. Box 30022 Whitby, Ontario Canada L1M 0B5