Handheld Non-Linear Junction Detector

Detects Semiconductor Junctions — Emits RF and listens for non‑linear responses from diodes, transistors, and integrated circuits hidden in devices.

Counter‑Surveillance Use — Commonly used in bug sweeps to locate covert transmitters, illicit electronics, and tampered items even when they are powered off.

Directional Handheld Probe — Wand or pistol‑grip design with a focused antenna for scanning walls, furniture, vehicles, and packages.

Visual & Audio Indicators — Provides signal‑strength readout and audio tones to guide the operator toward the source.

False‑Positive Awareness — Can respond to benign electronics, power supplies, or metal junctions; operator skill and corroborating inspection are essential.