- Stock: In Stock
- Model: LORNET-STAR24S
The Lornet Star24S slim nonlinear junction detector is designed for tight-space TSCM sweeps where standard bug detectors and bulkier NLJDs struggle. Its telescopic inspection wand and lightweight detector head give security teams precise control when checking ceilings, floors, furniture, wall cavities and fixtures for powered-off electronics, covert recorders and other embedded devices.
Built around dual-harmonic detection with pulse and CW modes, the Lornet Star24S provides clear visual and audio feedback on hidden semiconductor junctions even when targets are not transmitting. Automatic frequency channel search and anti-jamming DSP help maintain a usable working band in busy RF environments, while hot-swappable batteries and a fast-charge container support extended missions without long charging breaks.
Key Features & Benefits
- Slim detector head for tight spaces: Compact head reaches under tables, behind fixtures and into confined areas during TSCM sweeps.
- Telescopic inspection wand: Removable rod extends the probe so operators can sweep ceilings, floor junctions and high surfaces without ladders.
- Dual-harmonic nonlinear detection: Pulse and CW modes with second and third harmonic reception help separate real electronics from benign structures.
- Automatic channel search and anti-jamming DSP: Automatic channel selection and digital filtering reduce interference in offices, industrial sites and other noisy RF environments.
- Visual spectrum display and audio monitoring: Built-in display and audio output show harmonic activity in real time so you can link signal changes to probe movement.
- Hot-swappable Li-Ion power: Swappable batteries and a fast-charge container support long duty cycles, with around 3 hours pulse and 1.5 hours CW runtime.
- Travel-ready professional form factor: Slim head, telescopic wand and carry system allow the Lornet Star24S to travel in standard luggage while functioning as a full-size professional NLJD in the field.
Where the Lornet Star24S Works Best
The Lornet Star24S is aimed at professional TSCM teams, corporate security departments and government agencies that need to locate hidden electronics in locations where conventional RF bug detectors and handheld NLJDs are hard to manoeuvre.
- Executive offices and boardrooms: Inspect conference tables, chair frames, skirting, ceiling voids and presentation equipment before sensitive meetings.
- R&D and data rooms: Sweep workbenches, cabinets, racks and cable routes for covert recorders or other embedded electronics that may bypass standard RF sweeps.
- Diplomatic and government facilities: Extend routine technical inspections to ceilings, wall panels and furniture without dismantling large structures.
- Hotels and temporary workspaces: Check bedrooms, meeting rooms and furnished offices where devices can be hidden inside fixtures, fittings and furniture.
- Vehicles and transport assets: Examine vehicle interiors, cargo areas and bodywork sections for electronics associated with tracking or covert surveillance.
How Nonlinear Detection Helps TSCM Teams
Standard RF bug detectors depend on devices transmitting. The Lornet Star24S uses nonlinear junction detection to find semiconductor junctions inside powered-off or intermittently active electronics. By transmitting in the 2406–2414 MHz band and listening on the corresponding second and third harmonics, it highlights the presence of electronic components even when they are not connected to power or radio networks.
Pulse and CW modes allow operators to balance range and selectivity, while receiver sensitivity down to approximately −110 dBm and a 24 dB dynamic range help separate target responses from background noise. Automatic selection among five frequency channels within the operating band further supports consistent results in locations with changing RF conditions.
Operator Controls & Workflow
The Lornet Star24S is designed so operators can adjust key parameters quickly while focusing on the area being swept. Output power can be adjusted over a wide range, and receive sensitivity is available in several discrete steps to match the environment and distance to the suspected target.
During a sweep, operators use both visual indications on the display and audio feedback through the supplied headphones. Changes in harmonic response as the probe passes over seams, joints, fasteners and fixtures help locate hidden electronics with greater accuracy than RF-only tools.
Technical Specifications
- Transmitter bandwidth: 2406–2414 MHz
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Radiated signals:
- Pulse modulation (approx. 44 % duty cycle)
- Continuous-wave (CW)
- Peak/average power: up to approximately 10 W peak / 230 mW avg (pulse), around 200 mW (CW)
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Harmonic frequencies:
- 2nd harmonic: 4812–4828 MHz
- 3rd harmonic: 7218–7242 MHz
- Receiver sensitivity: ≤ −110 dBm; dynamic range about 24 dB
- Channel selection: automatic choice among 5 frequency channels within the operating band
- Power source: two 12 V Li-Ion rechargeable batteries (approx. 7.8 Ah each)
- Typical runtime: about 3 hours (pulse mode) / about 1.5 hours (CW mode)
- Detector head dimensions: approx. 39 × 10 × 6 cm
- Rod dimensions: approx. 54–86 × 4 × 4 cm
- Weight: ~0.8 kg (detector head) + ~0.2 kg (rod)
- Operating temperature: approx. +5 °C to +40 °C
Compliance & Lawful Use
The Lornet Star24S is a professional counter-surveillance instrument intended for authorised technical security work. Laws and regulations governing electronic surveillance and counter-surveillance activities vary by country and jurisdiction. It is the responsibility of the operator and contracting organisation to ensure that all inspections and investigations are carried out in accordance with applicable legal and regulatory requirements.
What's in the Box
- 1 × Lornet Star24S main unit
- 1 × removable telescopic pole
- 1 × replacement antenna module
- 1 × fast-charge battery container with 220 V charger
- 2 × 12 V Li-Ion rechargeable batteries
- 1 × headphones for audio monitoring
- 1 × operator’s manual
- 1 × protective carrying/transport bag
Frequently Asked Questions.
1. What types of devices can the Lornet Star24S help locate?
The Lornet Star24S is designed to highlight the presence of electronic circuits based on their nonlinear response. In practice, it can assist in locating hidden transmitters, digital microphones, covert recording devices and other electronics that contain semiconductor junctions, including devices that are powered off or not transmitting continuously.
2. How is this different from a standard RF bug detector?
Standard RF detectors rely on receiving radio transmissions and may not respond to powered-off devices or implants that transmit only occasionally. The Lornet Star24S uses nonlinear junction detection to identify electronic components directly, giving TSCM teams an additional method for detecting electronics that do not emit a continuous RF signal.
3. Can the Lornet Star24S be used in busy RF environments?
Yes. The instrument includes automatic frequency channel search and digital signal processing to help reduce interference in locations such as offices, industrial facilities and urban buildings. Operators can also adjust power and sensitivity to better match local conditions.
4. Is specialist training recommended?
As with other professional NLJDs, effective use of the Lornet Star24S depends on understanding nonlinear responses and how different materials behave under inspection. Training in TSCM techniques and nonlinear detection methods is strongly recommended so teams can interpret results correctly and build repeatable sweep procedures.
5. Does the Lornet Star24S replace other TSCM tools?
The Lornet Star24S is intended to complement, not replace, RF spectrum analysers, wideband receivers and other TSCM tools. It adds nonlinear detection capability and a wand-style form factor that improve coverage in areas where RF-only methods and visual inspection may leave gaps.
