{"product_id":"lornet-star24s-nonlinear-junction-detector-advanced-counter-surveillance-system","title":"Lornet Star 24S Nonlinear Junction Detector – Advanced Counter-Surveillance System","description":"\u003cdiv style=\"font-family: Verdana, sans-serif; font-size: 14px;\"\u003e\n\u003cp\u003eLornet Star 24S is a nonlinear junction detector (NJD) built for professional counter-surveillance. It uses dual-harmonic analysis of second and third harmonics, selectable pulse and continuous-wave operation, automatic channel search in 200 kHz, 2 MHz, or 13 MHz steps, and anti-jamming filtering. A handheld design with a removable 54–86 cm telescopic rod, modular antenna, and Li-ion battery system supports mobile sweeps in offices, facilities, and vehicles.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-harmonic detection:\u003c\/strong\u003e Confirms semiconductor junctions by reading second and third harmonics, including devices that are powered down.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePulse and CW modes:\u003c\/strong\u003e Use pulse for wide, long-range scans, then switch to CW for precise localization with audio feedback.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart frequency control:\u003c\/strong\u003e Automatic channel search with anti-jamming filtering maintains a clean working window in busy RF areas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandheld with reach:\u003c\/strong\u003e Removable telescopic rod extends 54–86 cm to check wall cavities, ceilings, and under-desk spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisual and audio cues:\u003c\/strong\u003e Integrated spectrum display and headphone monitoring provide clear confirmation during a sweep.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular antenna bands:\u003c\/strong\u003e Hot-swap 800 MHz, 2400 MHz, or 3600 MHz modules to match the environment without changing tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual power and sensitivity:\u003c\/strong\u003e Adjust output power and select receive sensitivity levels directly on the handle for quick control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eWhere It’s Used\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eDeploy for privacy checks in boardrooms, executive suites, laboratories, server rooms, vehicles, and other sensitive areas where passive or active implants may be concealed in fixtures, furniture, or equipment. Mode switching and harmonic readout support both broad scans and pinpoint checks.\u003cbr\u003e\u003cimg src=\"https:\/\/www.securitylab.com.au\/image\/catalog\/2025\/Product%20Desc%20Images\/Counter%20Surveillance\/lornet-star24s-nljd-handheld-detector-black-display.jpg\" alt=\"Black Lornet Star24S detector head showing a color spectrum graph on the screen, attached control handle, and a separate telescopic rod\" title=\"Lornet Star24S NLJD handheld detector with detachable rod\" style=\"width: 100%;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e Transmitter Bandwidth: \u003c\/strong\u003e 2406–2414 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Radiated Signals: \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003ePulse modulation (44 % duty cycle)\u003c\/li\u003e\n\u003cli\u003eContinuous-wave (CW)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Peak\/Average Power: \u003c\/strong\u003e 10 W peak \/ 230 mW avg (pulse), 200 mW (CW)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Harmonic Frequencies: \u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e2nd: 4812–4828 MHz\u003c\/li\u003e\n\u003cli\u003e3rd: 7218–7242 MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Receiver Sensitivity: \u003c\/strong\u003e ≤ –110 dBm; dynamic range 24 dB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Channel Selection: \u003c\/strong\u003e 5 automatic frequency channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Power Source: \u003c\/strong\u003e Two 12 V Li-ion batteries (7.8 Ah)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Runtime: \u003c\/strong\u003e ≥ 3 h (pulse) \/ ≥ 1.5 h (CW)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Dimensions: \u003c\/strong\u003e Detector head 39 × 10 × 6 cm; rod 54–86 × 4 × 4 cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Weight: \u003c\/strong\u003e ~0.8 kg (detector head) + ~0.2 kg (rod)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Operating Temp: \u003c\/strong\u003e +5 °C to +40 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e Module Thickness: \u003c\/strong\u003e ≤ 18 mm (antenna modules)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003ePackaging Contents\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Lornet Star 24S main unit\u003c\/li\u003e\n\u003cli\u003e1 x Removable telescopic pole\u003c\/li\u003e\n\u003cli\u003e1 x Replacement antenna module\u003c\/li\u003e\n\u003cli\u003e1 x Fast-charge battery container \u0026amp; 220 V charger\u003c\/li\u003e\n\u003cli\u003e2 x 12 V Li-ion rechargeable batteries\u003c\/li\u003e\n\u003cli\u003e1 x Headphones for audio monitoring\u003c\/li\u003e\n\u003cli\u003e1 x Headphones for audio monitoring\u003c\/li\u003e\n\u003cli\u003e1 x Operator’s manual\u003c\/li\u003e\n\u003cli\u003e1 x Protective carrying\/transport bag\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between pulse and CW modes?\u003c\/strong\u003e\u003cbr\u003ePulse mode provides high-power bursts for faster, wider scans. CW offers a steady carrier and is used to pinpoint a suspect spot with audio and visual feedback.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does automatic channel search help in busy environments?\u003c\/strong\u003e\u003cbr\u003eIt scans available channels and locks a quiet one, while anti-jamming filtering suppresses center-frequency noise to keep readings stable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long can I operate on battery power?\u003c\/strong\u003e\u003cbr\u003eTypical runtime is at least 3 hours in pulse mode or about 1.5 hours in CW. The fast-charge container supports quick swaps between the two batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I check hard-to-reach areas?\u003c\/strong\u003e\u003cbr\u003eYes. The telescopic rod extends from 54 to 86 cm to reach ceilings, wall cavities, and under furniture without awkward positioning.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it detect devices that are switched off?\u003c\/strong\u003e\u003cbr\u003eYes. Dual-harmonic detection reads the second and third harmonics from semiconductor junctions, which remain present even when a device is powered down.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eLegal Disclaimer\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eRecording and surveillance laws vary by state and territory. Please check your local requirements, obtain consent where necessary, and use this device only for lawful purposes. This information does not constitute legal advice.\u003c\/p\u003e\n\n\u003chr\u003e\n\u003ch2\u003e\u003cstrong\u003eLearn More\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.securitylab.com.au\/bug-detectors\" target=\"_blank\"\u003eExplore all bug detectors\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.securitylab.com.au\/counter-surveillance-buying-guide\" target=\"_blank\"\u003eCounter-surveillance guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.securitylab.com.au\/spy-camera-detectors\" target=\"_blank\"\u003eHidden camera detector range\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"Custom Theme","offers":[{"title":"Default Title","offer_id":42507514773586,"sku":"LORNET-STAR24S","price":21810.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/4636\/9106\/files\/counter-surveillance-professional-bug-detector-non-linear-junction-sweeper-550x550_7f30a780-121f-488b-a6e7-05d65a956ddd.jpg?v=1784281722","url":"https:\/\/securitylab.co.nz\/products\/lornet-star24s-nonlinear-junction-detector-advanced-counter-surveillance-system","provider":"Securitylab NZ","version":"1.0","type":"link"}