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Professional Non-Linear Junction Detector for TSCM and Counter-Surveillance

Professional-grade Non-Linear Junction Detector (NLJD) for locating semiconductor-based devices — active or inactive — hidden inside walls, furniture, and personal belongings. Essential for technical surveillance countermeasures (TSCM) sweeps of VIP offices and secure facilities.

Quick Overview
Transmit Frequency
2.4 GHz (ISM band)
Detection Harmonics
2nd & 3rd harmonic simultaneous
Effective Range
Up to 1 m through solid walls
Antenna
Directional flat panel, 30° beam
Display
OLED dual-channel bar graph
Features
Transmit Frequency
2.4 GHz (ISM band)
Detection Harmonics
2nd & 3rd harmonic simultaneous
Effective Range
Up to 1 m through solid walls
Antenna
Directional flat panel, 30° beam
Display
OLED dual-channel bar graph
Transmit Power
2 W adjustable
Battery Life
8 hours continuous
Weight
1.4 kg (head + controller)
Operating Temp
0 °C to +50 °C
Warranty
2 years hardware
Real-Time Usage in Field Operations
VIP & Executive Office Sweeps
VIP & Executive Office Sweeps
Border & Customs Contraband Detection
Border & Customs Contraband Detection
Military & Intelligence Facility Security
Military & Intelligence Facility Security
Reviews & Ratings
4.2
★★★★
128 Reviews
5★
62%
4★
24%
3★
8%
2★
4%
1★
2%
L
Lead TSCM Investigator Government Counter-Intelligence Unit ✓ Verified
★★★★★
We located a dormant listening device inside a conference room table that had been missed by three previous RF sweeps. The NLJD found it because the bug was switched off.
Questions & Answers
★ Official Answer

Yes. This is the primary advantage of NLJD technology. The semiconductor junction responds to the transmitted microwave signal regardless of whether the target device has a power source.

★ Official Answer

The simultaneous 2nd/3rd harmonic display helps operators distinguish manufactured semiconductor junctions (real threats) from corrosion-induced junctions (false positives). Training and experience are key.

★ Official Answer

Yes. We offer a certified 3-day TSCM operator course covering theory, sweep methodology, and practical exercises in a simulated environment.

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