Professional Detector NLJD 3HECA-01

Professional Tool for Detecting Concealed Electronic Devices.
The NLJD 3HECA-01 is a high-performance non-linear junction detector designed for professionals who require fast and accurate detection of hidden electronic components. Compact, cost-effective, and easy to operate, it offers a reliable solution for identifying threats such as SIM cards, covert audio recorders, and hidden surveillance cameras.

Detection of Passive Devices

• Capable of identifying electronic components even when they are powered off or disconnected from a power source;

Effective Detection Range

• Detects SIM cards at a distance of 80–110 mm and other electronic devices (such as mobile phones or voice recorders) at 170–270 mm;

Circularly Polarized Antenna

• Minimizes the risk of missed detections due to improper antenna orientation;

Safe Frequency and Low Output Power

• Operates in the 2.4 GHz ISM frequency band with an EIRP of less than 500 mW, compliant with EN 300 440 standards;

High Sensitivity and User-Friendly Interface

• Offers precise signal detection combined with an intuitive interface, ensuring rapid results without the need for specialized training;

Mobility and Continuous Operation

• Equipped with a 1.4-inch telescopic handle for ergonomic use, and the swappable battery system ensures uninterrupted operation in the field;

Operating Principle

• The NLJD 3HECA-01 transmits a radio frequency (RF) signal into the target area. When this signal encounters a non-linear junction—typically found in semiconductors—it generates harmonic signals. These are then detected and analyzed by the device, allowing identification of concealed electronic devices. This advanced method enables the detection of threats even when they are turned off or not transmitting, making it highly effective against covert surveillance equipment;

Advantages Over Traditional Detectors

• Unlike conventional RF detectors that rely solely on active transmissions, the NLJD 3HECA-01 is capable of locating both active and inactive electronic devices—including those that are powered off or disconnected. This makes it an invaluable asset during professional security inspections where discovering all forms of hidden electronics is critical;

Properties

• Range of detection nanoSIM card up to 100mm / 200mm for 4W version;
• Transmitter Pulse mode , EIRP less then 500mW / 4000mW for 4W version;
• Frequency 2,4 GHz band conform with the SRD standard (EN 300 440);
• Output power adjustable ( auto and manual 4 step off 3 dB);
• Receiver Second (4,8 GHz) Third (7,2GHz);
• harmonic signal sensitivity -135dBm;
• Antenna Helical, Circularly polarized;
• Alarm Visual, Sound, Headphones;
• Power supply 2 rechargeable batteries;
• Li-ion or LiFePO4 type 14500 (AA size);
• Internal charging
• Current consumption Less than 250 mA;
• Continuous operating time Up to 4 hours;
• Temperature range +5С…+40С -10C…+50C (transportation and storage);
• Dimensions of the main unit 150*150*80 mm (not more than);
• Telescopic stick handle 0.27m to 0,9 m ( GoPro mount);
• Weight 350g main unit including batteries (not more than);
• + 120g telescopic stick;

Set of equipment

• NLJD 3HECA-01 Professional Detector;
• Rechargeable Battery Pack;
• Battery Charger;
• Telescopic Handle;

Warranty: 12 months;

Delivery across Lithuania within 5–7 business days.