To detect radio-frequency covert surveillance devices, including those operating via 4G/5G channels, field detectors, mobile signal detectors, and specialized spectrum analyzers are used. Typically, they cover frequency ranges up to 6 GHz or 12 GHz and can effectively detect signals within those limits. However, several 5G bands operate at higher frequencies, and such signals cannot be detected by standard search equipment These are the millimeter-wave (mmWave) bands. Although these bands have limited penetration through walls and structures and are mostly used outdoors or in areas with large crowds, there remains a possibility they may be used for illegal information transmission. Therefore, during a professional bug sweep, detecting and localizing signal sources in the millimeter-wave range becomes essential. Features: Detects covert radio-frequency surveillance devices operating in ultra-highfrequency ranges that standard detectors cannot identify, such as hidden microphones, cameras, 5G mmWave transmitters, or other microwave transmitters Excellent addition to a professional sweep kit by expanding the detection range up to 44 GHz Significantly lower cost than professional spectrum analyzers and much easier to operate Ignores signals outside its range (below 9 GHz), simplifying operation Detects signals regardless of modulation type or transmitted information Three Operating modes: Silent (visual indication only) Alarm (audio and visual alert) Sound (amplitude component playback + visual) Dual-level scale: Modulation Level (high sensitivity, long-distance detection) RF Level (precise localization) Built-in antenna with 30° directional pattern Compact and durable duralumin housing Powered by one AA battery (LR06) Low battery indication Battery life: 10–20 hours Specifications Frequency range: 9-44Ghz Sensitivity: ~ 40dBm Scale types: Modulation level, RF level Control buttons: Power, Mode Display OLED 128 x 32 Battery life: 10-20 hours Dimensions: 172 x 19mm Power: 1 AA battery Power Type Battery Signal Detection RF Detection Shipping Dimensions 6.75" x 0.75" x 0" Shipping Weight 0.2 Lb Included DD1240 Detector Manual
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