In an automatic door system, the motor generates movement, but it is the sensor system that determines how accurately people are detected, how safely the door operates, and how consistently the entire system performs. For this reason, NABCO has always regarded sensor technology as one of its core research and development priorities. Among its innovations, NABCO N-Search technology represents a significant advancement, improving human detection accuracy, reducing blind spots, and increasing the overall reliability of the door system. Beyond enhancing operational performance, N-Search has enabled NABCO automatic door solutions to meet the stringent requirements of buildings around the world, helping establish the brand’s reputation over many decades.
What is NABCO N-Search technology?
NABCO N-Search technology is a new generation of NABCO automatic door sensors designed to combine door activation and safety zone monitoring within a single system. The sensor uses Active Infrared Sensor technology to detect both movement and human presence, ensuring that the door opens and closes at precisely the right time while reducing the risk of collisions during operation.
Unlike many conventional automatic door sensors that perform only a single function, N-Search integrates both Motion Detection and Presence Detection into one device. As a result, the system not only detects approaching pedestrians to activate the door but also keeps the door open whenever a person or object remains within the protection zone.
In addition, N-Search allows the detection area to be adjusted flexibly to suit different installation conditions, making it ideal for facilities with heavy pedestrian traffic such as hospitals, airports, hotels, and shopping malls. This technology provides the foundation for NABCO’s automatic door sensors to meet demanding requirements for safety, detection accuracy, and operational efficiency simultaneously.

What makes NABCO N-Search technology different?
The uniqueness of NABCO N-Search technology is not simply the addition of another sensor, but its ability to integrate multiple safety functions into a single device, significantly improving pedestrian detection accuracy while ensuring stable operation of the entire automatic door system.
N-Search utilizes Active Infrared Sensor technology while integrating both Motion Detection and Presence Detection. The system incorporates 72 Detection Spots, creating a much denser detection field and allowing the scanning area to be adjusted according to installation conditions and the specific characteristics of each building.
In addition, N-Search features a Self-Test function that automatically checks the operating status of the sensor after every door opening and closing cycle. This mechanism ensures continuous monitoring of the safety zone while enabling early detection of potential abnormalities during operation.
With its precise detection capability, continuous safety monitoring, and ability to meet the requirements of EN 16005 when installed according to the recommended configuration, NABCO N-Search technology significantly enhances the safety and reliability of NABCO automatic door solutions, especially in demanding environments such as hospitals, airports, hotels, and shopping malls.

How has NABCO N-Search technology contributed to NABCO’s reputation?
Technology only proves its value through real-world operation. For NABCO, NABCO N-Search technology was never developed simply to introduce another product feature. Instead, its purpose is to improve the safety, reliability, and user experience of the entire automatic door solution.
By providing highly accurate detection, minimizing blind spots, automatically verifying sensor status, and continuously monitoring the protection zone, N-Search enables automatic door systems to operate more reliably in buildings with extremely demanding safety requirements and heavy pedestrian traffic, including hospitals, airports, hotels, shopping malls, and office buildings. These are environments where even a minor detection error can significantly affect user experience and building operation.

The ability to satisfy these demanding requirements has helped NABCO automatic door solutions earn the trust of customers worldwide. Since manufacturing Japan’s first automatic door in 1956, NABCO has continuously improved every aspect of its systems from automatic door operators and controllers to automatic door safety sensor technology to achieve greater reliability throughout the product lifecycle.
By 2025, NABCO had manufactured more than 3 million automatic door operators, installed in airports, hospitals, hotels, shopping malls, and landmark buildings worldwide. This achievement is the result of continuous improvements across the entire system, with NABCO N-Search technology playing a key role in enhancing product quality and strengthening the reputation of this Japanese automatic door brand.

Where is NABCO N-Search technology most suitable?
Thanks to its precise detection capability and continuous protection zone monitoring, NABCO N-Search technology is particularly well suited for facilities requiring high levels of safety, intensive usage, and reliable long-term operation.
- Hospitals: Reduces collision risks while supporting wheelchairs, stretchers, and smooth pedestrian flow in busy areas.
- Airports and shopping malls: Minimizes unnecessary door openings while maintaining reliable performance under extremely high operating frequencies.
- Hotels, office buildings, and premium residential developments: Improves the user experience while reducing energy loss by ensuring that doors open only when necessary.
Its ability to perform effectively across diverse operating environments has made N-Search an integral part of NABCO automatic door solutions for a wide range of building applications.
NABCO N-Search technology integrated into the NABCO NSW-A01 sensor installed on automatic doors at Park 9 Times City luxury apartments
>>> See more: Why do premium automatic doors operate so smoothly? The difference lies in the smallest details
Conclusion
NABCO N-Search technology is more than just an automatic door safety sensor system—it reflects NABCO’s commitment to precision, reliability, and user-centered design. Innovations such as 72 Detection Spots, the Self-Test function, and the integration of Motion Detection and Presence Detection have helped make NABCO automatic door solutions a trusted choice for buildings around the world.
As NABCO’s official partner for more than 20 years, Sonha Auto applies the manufacturer’s technical standards to provide consultation, installation, and maintenance of automatic entrance solutions tailored to each project in Vietnam. Beyond supplying genuine NABCO equipment, Sonha Auto works closely with project owners to deliver entrance solutions that meet demanding requirements for safety, operational efficiency, and long-term value.



