CSL 951 NLJD Compact
Portable Non-Linear Junction Detector
The CSL 951 NLJD COMPACT is a compact, high-performance Non-Linear Junction Detector (NLJD) developed for professional Technical Surveillance Counter-Measures (TSCM) applications. Designed to locate concealed electronic devices, whether powered on or off, the unit enables effective detection of covert electronics hidden within walls, floors, ceilings, furniture, lighting, and containers.
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Alerts are provided through a combination of visual display, audio output, and vibration, ensuring clear and immediate operator feedback in a variety of operational environments. The CSL 951 NLJD COMPACT is an essential tool for protecting sensitive information by identifying unauthorised or covert electronic surveillance devices targeting organisations or individuals.
Technology Principal:
The CSL 951 NLJD COMPACT emits an S-band fundamental wave towards the target area or object. Electronic components containing semiconductors generate second and third harmonic signals, which are captured by the receiver. These harmonic responses are analysed using an AI-based detection algorithm, allowing the system to accurately identify electronic devices based on their non-linear junction characteristics.
Key Features:
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High Detection Accuracy – Uses 2.4 GHz radio frequency technology for precise localisation of hidden electronic devices
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Advanced Semiconductor Detection – Built-in spectrum analyser detects both second and third harmonics
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Exceptional Sensitivity – Highly effective at locating SIM-card-based and mobile communication devices
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Low False Alarm Rate – Proprietary non-destructive detection algorithm reduces false positives
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Safe and Reliable – Complies with electromagnetic safety standards for human exposure
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Flexible Operation – Supports automatic power adjustment and manual mode selection
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User-Friendly Interface – OLED graphical display shows emission levels and harmonic response data in real time
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Outstanding Value – Delivers professional-grade NLJD performance with an excellent performance-to-cost ratio
Why Choose the CSL 951 NLJD Compact?
The CSL 951 NLJD COMPACT is built for operational efficiency and reliability in real-world counter-surveillance work. Its compact design and intuitive controls reduce operator fatigue and speed up search workflows, while the multi-mode alert system ensures findings are immediately clear in any environment. This NLJD is also engineered to minimise false positives, helping teams maintain confidence in their results without wasting time on non-threat signals. For professionals who need a portable, user-friendly, and dependable detection tool, the CSL 951 NLJD COMPACT offers a practical solution that performs consistently in demanding field conditions.
This compact NLJD is a great addition to portable EOD reconnaissance mission kit.
