Handheld Non Linear Junction Detector (NLJD)

Detects Electronic Components — Senses semiconductor junctions (diodes, transistors, ICs) in powered‑off devices by emitting RF and listening for non‑linear echoes.

Used for Bug Sweeps & Counter‑Surveillance — Commonly used to locate hidden transmitters, covert electronics, and tampered devices in rooms, vehicles, or packages.

Portable & Directional Probe — Handheld wand or pistol grip with a directional antenna for scanning walls, furniture, fixtures, and electronics.

Visual & Audio Alerts — Provides strength/readout on a display plus audio cues to guide the operator to a target location.

Limitations & False Positives — Metal junctions, certain power supplies, or electrical wiring can produce responses; operator training is important to interpret results.

Operational Considerations — Battery‑powered, needs close-range sweeps for best sensitivity, and is most effective when used alongside EM/physical inspection and procedural search techniques.