AK400 Infrared Detector Anti-tracking Device 10MHz-5GHz Portable Anti-camera Scanner Sound Vibration Alarm 91mm Anti-spy Tool
AK400 Infrared Detector for Anti-Spy Protection and Signal Scanning

The AK400 infrared detector serves as a practical tool for individuals seeking to identify unauthorized surveillance equipment in their immediate surroundings. This compact device scans for electronic emissions across a wide frequency spectrum, helping users locate hidden cameras, recording devices, and tracking units. By offering both audible and vibration alerts, it ensures that users remain informed of potential privacy breaches regardless of their environment. Its lightweight design makes it an accessible option for frequent travellers, business professionals, and anyone concerned about personal data security.
Technical Specifications and Build

Understanding the technical capabilities of the AK400 is essential for utilising it effectively against modern surveillance threats. The device is engineered to cover specific frequency ranges where most covert transmitters operate.
Frequency and Range
The detector operates within a frequency band of 10MHz to 5GHz, allowing it to intercept a broad array of wireless signals used by common spy equipment. Its effective working distance varies from 0.1 metres up to 6 metres, providing flexibility when scanning rooms, vehicles, or hotel accommodations. This range enables users to pinpoint the general location of a device before conducting a more focused physical search.
Dimensions and Portability
Weighing just 36 grams, the AK400 is designed to be unobtrusive and easily carried in a pocket or small bag. Its overall dimensions are 91mm in length, 37mm in width, and 13mm in thickness. This slim profile ensures that the detector does not add bulk to your carry items while remaining ready for immediate deployment whenever privacy concerns arise.
Operational Modes and Alerts

The functionality of the AK400 revolves around its ability to provide clear notifications when suspicious signals are detected. Users can choose between different alert types to match their current situation and level of required discretion.
Sound and Vibration
The device features a dual-mode alarm system that can emit an audible sound or trigger a vibration alert. This flexibility allows users to maintain silence in quiet environments like meetings or cinemas while still receiving tactile feedback. The transition between modes ensures that the detector can be used continuously without drawing unwanted attention to the security sweep itself.
Power Requirements
Operating at a standard voltage of 5V, the detector is compatible with common USB power sources. This standardisation simplifies the charging process, as users can utilise existing cables and power banks. Reliable power delivery is crucial for maintaining the sensitivity of the infrared sensors and ensuring consistent detection performance throughout the scanning process.
Practical Applications

The versatility of the AK400 makes it suitable for various scenarios where privacy is paramount. Its primary function is to act as a counter-surveillance measure against increasingly accessible recording technology.
Travel and Accommodation
When staying in hotels or rental properties, guests can use the detector to sweep the room for hidden cameras in mirrors, smoke detectors, or electrical outlets. The ability to scan from a distance of up to 6 metres allows for a quick initial assessment of the space. This proactive approach provides peace of mind by verifying that private areas remain free from unauthorized observation.
Professional Security
Business professionals discussing sensitive information can employ the AK400 to ensure meeting rooms are free from recording devices. The device's capacity to detect anti-positioning and anti-tracking signals helps protect corporate secrets and personal conversations. Its compact nature means it can be deployed quickly before important discussions begin without disrupting the flow of business.
Value and Utility

Investing in a dedicated detection device offers a tangible layer of security that software solutions alone cannot provide. The AK400 focuses on physical signal detection to identify hardware threats.
Reusable Protection
Unlike disposable security measures, this infrared detector is built for repeated use over time. Its robust construction and simple operation mean it requires minimal maintenance to remain effective. Users can rely on it for multiple trips, office checks, and personal security sweeps, making it a enduring addition to a privacy-focused toolkit.
Direct Detection Capability
The AK400 provides a direct method for locating emission sources without complex interpretation of data. By converting invisible radio frequencies into audible or tactile alerts, it simplifies the process of finding hidden devices. This straightforward approach ensures that users do not need technical expertise to enhance their personal security posture effectively.