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This compact AK400 model infrared detector provides a practical solution for identifying potential monitoring attempts in personal and professional environments. Measuring just 91x37x13mm and weighing 36g, this portable device operates across a broad 10MHz-5GHz frequency spectrum to detect various surveillance activities. Designed specifically for anti-recording, anti-stealing, anti-video, anti-positioning, and anti-theft applications, it offers users an additional layer of privacy awareness without complex setup procedures. The detector functions within a 0.1-6 metre range and can be powered conveniently via standard USB connection, making it suitable for both fixed installation and mobile use scenarios.
The AK400 infrared detector combines specific technical specifications with practical usability features for monitoring detection applications.
This detector serves multiple monitoring detection purposes across different settings, from professional environments to personal spaces.
This product offers specific functional advantages for users concerned with privacy and unauthorised monitoring in various contexts.
Infrared detector providing anti-recording, anti-theft and anti-positioning monitoring detection with 10MHz-5GHz frequency coverage, portable 91x37x13mm design, audible or vibration alarm modes, and USB power connectivity.
£29.98
Sale price
£29.98
Regular price
AK400 Portable Infrared Detector: 10MHz-5GHz Anti-Monitoring Device with Dual Alarms

Features and Construction

Material and Build
Constructed from electronic components optimised for infrared detection and signal processing, this device incorporates the necessary circuitry to scan across its designated 10MHz-5GHz frequency band. The build focuses on functionality for its stated purposes of anti-recording, anti-theft, anti-video, anti-positioning and anti-theft detection. No additional materials, premium finishes, or specialised coatings beyond standard electronic construction are specified.Size and Practical Fit
With overall dimensions of 91mm in length, 37mm in width, and 13mm in depth, this detector maintains a genuinely portable form factor. The 36g weight ensures it can be carried discreetly or positioned inconspicuously within rooms, bags, or vehicles. Its operational scope of 0.1-6 metres defines the effective detection area, which users should consider when placing the device for optimal coverage in their specific environment.Uses and Placement

Event or Professional Use
In meeting rooms, conference venues, or sensitive discussion areas, the detector can help identify unauthorised recording devices operating within its frequency range. The dual alarm options allow professionals to choose between audible alerts for immediate awareness or vibration modes for discreet notification during active proceedings. The USB power connectivity means it can operate continuously when connected to power banks, laptops, or wall adapters during extended events or business travels.Everyday Home Use
For residential privacy concerns, the detector can monitor personal spaces for potential surveillance devices. Its infrared detection technology works within domestic environments to identify signals that might correspond to hidden cameras or tracking equipment. The 0.1-6 metre operational range makes it suitable for checking smaller rooms, study areas, or private spaces where unauthorised monitoring could occur.Benefits and Buying Value

Reuse and Low Maintenance
The detector requires minimal maintenance beyond standard electronic care. Its USB power connection uses widely available cables and adapters, eliminating the need for specialised batteries or charging systems. The durable electronic construction supports repeated use across different locations and scenarios without performance degradation concerns, provided it's used within its specified operational parameters.Why Choose This Product
Select this detector for its combination of broad frequency coverage (10MHz-5GHz), compact portable design (91x37x13mm), and flexible alert options (audible or vibration). Unlike devices with single alarm modes or limited frequency ranges, this model addresses multiple monitoring concerns including anti-recording, anti-stealing, anti-video, anti-positioning, and anti-theft within one unit. The specific technical specifications provide measurable parameters for informed purchasing decisions rather than vague promises of protection.