{"product_id":"cayman-st-401-403-non-linear-detector","title":"Cayman ST-401(403) Non-Linear Junction Detector","description":"\u003cdiv style=\"font-family: Verdana, sans-serif; font-size: 14px;\"\u003e\n  \u003cp\u003eThe Cayman ST-401 (403) non-linear junction detector (NLJD) is designed to locate hidden electronics by illuminating harmonic responses from semiconductors such as transistors and diodes. It transmits RF energy and displays the returning harmonics so operators can distinguish natural materials from artificial electronic components, helping to find deactivated or active bugs, microphones, cameras, and trackers in places where visual inspection is ineffective.\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\u003eFinds active and dormant devices:\u003c\/strong\u003e Detects electronics whether powered on or off by reading non-linear harmonic responses.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaterial discrimination:\u003c\/strong\u003e Helps differentiate natural semiconductors from artificial structures for fewer false leads.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eControlled sensitivity:\u003c\/strong\u003e Manual adjustment range with step changes supports precise localisation during close searches.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDual indication:\u003c\/strong\u003e Visual LED bars plus audio monitoring provide clear feedback in noisy or quiet environments.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eField-ready kit:\u003c\/strong\u003e Uses standard rechargeable cells and ships with a shock-proof transport case for protection.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e\u003cstrong\u003eWhere It’s Typically Deployed\u003c\/strong\u003e\u003c\/h2\u003e\n  \u003cp\u003eUse the NLJD for technical security sweeps of offices, boardrooms, mail and parcel screening areas, cargo checks, hotels, private residences, and sensitive facilities. It supports searches of furnishings, walls, and personal effects to reveal hidden electronics that conventional RF or visual checks may miss.\u003c\/p\u003e\n  \u003cp\u003e\u003cimg src=\"https:\/\/www.securitylab.com.au\/image\/catalog\/2025\/Product%20Desc%20Images\/Counter%20Surveillance\/cayman-st-401-non-linear-junction-detector-display-closeup.jpg\" alt=\"Cayman ST-401 non-linear junction detector head with LED input bars, power and mode labels, control port and cable\" title=\"Cayman ST-401 NLJD head with LED bar display\" 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 (portable): 300mm x 250mm x 130mm (L*W*H)\u003c\/li\u003e\n    \u003cli\u003eWeight of the Detector: 1.3kg\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-401 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 find devices that are switched off?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eYes. NLJDs reveal the non-linear response of semiconductor junctions, allowing detection of powered and unpowered electronics.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eHow should I interpret the LED bars and audio?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eIncreasing bar counts and stronger audio indicate a rising harmonic response. Reduce sensitivity as the indication increases to pinpoint the source.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhere should I focus during a sweep?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eScan furniture, wall fixtures, parcels, and dense materials where electronics may be concealed. Use step sensitivity to narrow the location.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhat powers the detector and how long does it run?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003eIt uses standard rechargeable 18650 batteries with typical battery life of 3–4 hours per full charge, depending on the 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":42507537055826,"sku":"CAYMAN-ST-401","price":15475.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0599\/4636\/9106\/files\/listening-device-finder-550x550_ae5e6550-292d-4adc-b1a3-5b0c80758b55.jpg?v=1784281802","url":"https:\/\/securitylab.co.nz\/products\/cayman-st-401-403-non-linear-detector","provider":"Securitylab NZ","version":"1.0","type":"link"}