{"product_id":"cayman-st-402-non-linear-junction-detector","title":"Cayman ST-402 Non-Linear Junction Detector","description":"\u003cdiv style=\"font-family: Verdana, sans-serif; font-size: 14px;\"\u003e\n  \u003cp\u003eThe Cayman ST-402 non-linear junction detector locates concealed electronics by transmitting RF energy and analysing harmonic responses from semiconductor junctions. It supports close-in localisation with manual sensitivity steps, provides visual LED bar feedback with audio monitoring, and uses a telescopic bar for extended reach during technical security sweeps of rooms, furniture, parcels, and structural elements.\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\u003eNon-linear detection:\u003c\/strong\u003e Identifies semiconductor junctions to reveal hidden electronics behind surfaces and inside objects.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eActive or dormant devices:\u003c\/strong\u003e Detects powered and powered-off recorders, cameras, trackers, and other circuits.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision control:\u003c\/strong\u003e Manual sensitivity adjustment in stepped increments helps pinpoint exact locations.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDual feedback:\u003c\/strong\u003e Visual LED bars with audio monitoring improve interpretation in both quiet and noisy areas.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eErgonomic reach:\u003c\/strong\u003e Telescopic bar with armrest supports extended, stable sweeps during long sessions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInterference resistant:\u003c\/strong\u003e Designed to maintain reliable operation in challenging RF environments.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e\u003cstrong\u003eWhere It’s Used\u003c\/strong\u003e\u003c\/h2\u003e\n  \u003cp\u003eApply the ST-402 to screen offices, hotels, meeting rooms, mail and parcel lines, vehicles, and furnishings when visual or RF-only checks are insufficient. Sweep walls, ceilings, fixtures, and containers to isolate harmonic responses and confirm likely electronic targets.\u003cbr\u003e\u003cimg src=\"https:\/\/www.securitylab.com.au\/image\/catalog\/2025\/Product%20Desc%20Images\/Counter%20Surveillance\/cayman-st-402-nljd-control-head-front-view-led-bars.jpg\" alt=\"Front view of Cayman ST-402 non-linear junction detector head with input level LED columns, power\/mode labels, control connector, USB port, and handle\" title=\"Cayman ST-402 NLJD head with input level LEDs and USB port\" style=\"width: 100%;\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\n  \u003ch2\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eFrequency Range: 2-3GHz\u003c\/li\u003e\n    \u003cli\u003eMaximum Peak Power: Less than 2W\u003c\/li\u003e\n    \u003cli\u003eAntenna: Elliptic\u003c\/li\u003e\n    \u003cli\u003eOperation Modes: \"Search\", \"Audio\", \"Adaptation\u003c\/li\u003e\n    \u003cli\u003eSensitivity Adjustment Range(Manual): 40dB (5 Steps of 8dB per adjustment)\u003c\/li\u003e\n    \u003cli\u003eVisual Indication: Three 16 LED Bars\u003c\/li\u003e\n    \u003cli\u003eAudible Indication: Built-in Speaker, and Headphones\u003c\/li\u003e\n    \u003cli\u003ePower Supply: Two Lithium ION Rechargeable Batteries (18650mAH) 3,7V\u003c\/li\u003e\n    \u003cli\u003eBattery-Life: 3-4 Hours (Full Charge - Depending on Operation Mode)\u003c\/li\u003e\n    \u003cli\u003eCharge Time: ~3 Hours\u003c\/li\u003e\n    \u003cli\u003eDimensions (Fully Expanded): 1500mm x 250mm x 130mm (L*W*H)\u003c\/li\u003e\n    \u003cli\u003eWeight of the Detector: 1.75kg\u003c\/li\u003e\n    \u003cli\u003eExtended Runtime: Up to 8 Hours with Additional Batteries\u003c\/li\u003e\n    \u003cli\u003eTransport Case: Shock-proof Case Included\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 Cayman ST-402 Detector\u003c\/li\u003e\n    \u003cli\u003e4 x Lithium ION Rechargeable Batteries 18650mAh\u003c\/li\u003e\n    \u003cli\u003e1 x Charging Unit\u003c\/li\u003e\n    \u003cli\u003e1 x Charger Cable\u003c\/li\u003e\n    \u003cli\u003e1 x Headphones\u003c\/li\u003e\n    \u003cli\u003e2 x Test Targets\u003c\/li\u003e\n    \u003cli\u003e1 x User Manual \/ User Guide\u003c\/li\u003e\n    \u003cli\u003e1 x Transportation Shock-proof Case\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e\u003cstrong\u003eFrequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eCan it detect electronics that are switched off?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eYes. NLJD technology reads harmonic responses from semiconductor junctions, allowing detection of powered and unpowered devices.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eHow do I pinpoint the exact location?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eFollow rising LED bars and audio level, then reduce sensitivity step by step to narrow the peak response as you move the probe.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat environments is it suitable for?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eUse in rooms, furnishings, parcels, and structural elements where electronics may be concealed and visual inspection is limited.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat is the typical operating time?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eBattery life is 3–4 hours per full charge, depending on the selected operating mode.\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 Buying Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"VIMEL","offers":[{"title":"Default Title","offer_id":42507571200082,"sku":"CAYMAN-ST-402","price":15475.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/4636\/9106\/files\/vimel-counter-surveillance-device-anti-spy-recorder-detect-anywhere-voice-recorder-hand-held-protection-safety-privacy-cayman-technology-detection-550x550.jpg?v=1784281966","url":"https:\/\/securitylab.co.nz\/products\/cayman-st-402-non-linear-junction-detector","provider":"Securitylab NZ","version":"1.0","type":"link"}