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  1. Home
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  3. パル技研
  4. What is a microwave?
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  • Jul 02, 2020
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Jul 02, 2020

What is a microwave?

パル技研 パル技研
Microwaves are a type of radio wave and a form of electromagnetic wave. Electromagnetic waves propagate as repeating waves, and the number of repetitions per second is called frequency (measured in hertz, Hz). The length from the peak of one wave to the peak of the next is called wavelength. Electromagnetic waves are named according to their frequency, and their applications vary according to their characteristics. In our company, we refer to radio waves with frequencies ranging from 3 GHz to 30 GHz (wavelengths from 10 cm to 1 cm) as "microwaves," and we use 24 GHz band radio waves in our microwave sensors. ◆◆ Features of Microwaves ◆◆ The features of microwaves include: - High directivity - Resistance to weather changes such as rain, fog, and snowfall - Ability to penetrate materials like resin, making them unaffected by obstacles These features, combined with our unique algorithms (signal processing technology), enable long-distance detection even in harsh environments. Additionally, our sensors can be used without a license. They can be installed in various situations, both indoors and outdoors, within the country.
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Microwave Intrusion Detection Sensor 'BSS01/BSM02'

Easy to adjust and add sensors! A microwave intrusion detection sensor that is strong against natural environments and capable of distance measurement.

The "BSS01/BSM02" is a microwave intrusion detection sensor that is highly resilient to natural environments and capable of distance measurement. Unlike conventional Doppler and infrared interruption methods, it adopts the FMCW method to detect intrusions based on distance and reflection levels, which reduces false alarms compared to traditional methods. It complies with the technical standards certification (ARIB STD-T73) for 24GHz band specific low-power radio stations, eliminating the need for cumbersome radio station license applications during use. Additionally, it can be used both indoors and outdoors in the country. 【Features】 ■ Strong against natural environments ■ Capable of long-distance monitoring ■ Covers a wide detection area ■ Capable of detecting intrusion locations ■ Easy installation adjustments and sensor expansions ■ Reduces false alarms *For more details, please refer to the PDF materials or feel free to contact us.

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Microwave Proximity Sensor 'BSS300/BSS301'

Separating the surrounding environment and detection area with distance information to reduce false alarms! A short-range intrusion detection sensor that can measure distance.

The "BSS300/BSS301" is a sensor that detects intruders using radio waves in the 24GHz band. In pole monitoring, it is possible to supplement the blind spots created at the feet of various intrusion detection sensors from above towards the ground. Microwaves are less affected by rain, snow, fog, backlighting, and other conditions, allowing for more stable monitoring even in environments where infrared sensors, image sensors, electric field sensors, and laser sensors tend to generate false alarms. 【Features】 ■ Strong against weather conditions such as rain, wind, snow, and fog, ensuring high reliability ■ Not affected by temperature changes caused by swaying vegetation ■ Can be installed along walls, on top of fences, and in various locations ■ Not influenced by surrounding reflections *For more details, please refer to the PDF document or feel free to contact us.

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Microwave Smart Sensor "BSS20"

Counter-terrorism measures for important infrastructure such as power plants and airports! 3D radio wave barriers reliably catch terrorists.

The "BSS20" is an intrusion monitoring sensor that uses 24GHz band radio waves. It detects intruders by blocking a detection area composed of multiple opposing transmitters and receivers. It is robust against outdoor natural environments, easy to adjust during installation, and can be utilized as a counter-terrorism measure for critical infrastructure such as power plants and airports. 【Features】 ■ Strong against weather conditions such as rain, wind, snow, and fog, ensuring high reliability ■ No need for precise optical axis alignment like infrared sensors ■ Can be installed along walls, on top of fences, and in various locations ■ Forms a 3D radio wave barrier through multi-stage installation of up to 4 layers *For more details, please refer to the PDF materials or feel free to contact us.

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Microwave Multi-Span Sensor 'BSS200-P1'

Security measures for factories and equipment! Catering to various needs from easy installation to permanent setups.

The "BSS200-P1" is a sensor that detects intruders using 24GHz band radio waves. When an intruder obstructs the detection area, which is composed of a pair of transmitters and receivers, an alarm is triggered. There is no need for precise optical axis alignment like with infrared sensors, making installation adjustments easy during setup. It caters to various needs, from security measures in factories and facilities to simple installations and permanent setups. 【Features】 - Strong against weather conditions such as rain, wind, snow, and fog, ensuring high reliability - No need for precise optical axis alignment like with infrared sensors - Can be installed in various locations, such as along walls or on top of fences - Achieves easy installation through miniaturization of the sensor and simplification of the interface *For more details, please refer to the PDF materials or feel free to contact us.

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Microwave Safety Monitoring Sensor 'BFS01/BFS01-P'

Simultaneously measures speed and distance! A safety monitoring sensor that utilizes highly weather-resistant microwaves.

The "BFS01/BFS01-P" is a microwave safety monitoring sensor that utilizes radio waves, making it resilient to weather conditions such as rain, wind, snow, and fog. It can perform reliable measurements with minimal false detection even in harsh outdoor environments. It complies with the technical standards for 24GHz band specific low power radio stations (ARIB STD-T73), and there is no need for a cumbersome radio station license application when using it. Additionally, it can be used both indoors and outdoors within the country. 【Features】 ■ Capable of measuring speed and distance simultaneously ■ Dustproof and waterproof with an IP67 rating, allowing for direct outdoor installation ■ Compatible with system requirements through contact output and Ethernet  (* Speed and distance information is supported only via Ethernet) * For more details, please refer to the PDF materials or feel free to contact us.

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Related catalog(5)

Microwave Proximity Sensor BSS300/BSS301

Microwave Proximity Sensor BSS300/BSS301

PRODUCT
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Microwave intrusion detection sensor 'BSS01/BSM02'

Microwave intrusion detection sensor 'BSS01/BSM02'

PRODUCT
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Microwave Safety Monitoring Sensor 'BFS01/BFS01-P'

Microwave Safety Monitoring Sensor 'BFS01/BFS01-P'

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Microwave Smart Sensor "BSS20"

Microwave Smart Sensor "BSS20"

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Microwave Multi-Span Sensor 'BSS200-P1'

Microwave Multi-Span Sensor 'BSS200-P1'

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HK-2

Recommended for earthquake measures for automatic doors and equipment! Seismic device HK-2.

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Japan is one of the top 10 countries in the world with frequent earthquakes. The 2020 White Paper on Land, Infrastructure, Transport and Tourism has also reported an increase in the probability of major earthquakes occurring. Regarding the Nankai Trough earthquake, the probability of an earthquake with a magnitude of 8 to 9 occurring within the next 30 years is estimated to be 70 to 80%. At Hotron, we recommend the introduction of seismic devices for earthquake countermeasures in buildings and equipment. The seismic device 'HK-2' is a product that automatically performs various controls that have been pre-set when it detects strong shaking equivalent to a seismic intensity of 5 lower or higher. For example, it can automatically execute actions such as: "Open automatic doors and gates to secure evacuation routes and access for emergency vehicles" "Transmit signals to the control room and stop facility equipment" "Unlock the keys to locked lockers" "Automatically play voice guidance" For more details, please download the materials or contact us.

Jun 05, 2026

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Solve your problems with wired bed exit sensors by connecting a wireless set linked to the nurse call system!

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Do you have any concerns or requests regarding wired bed exit sensors? × Tangling or tripping over wired cables × Cable disconnection or damage × Worrying about forgetting to turn the switch back on after temporarily stopping the sensor. × Wanting to be notified of bed exits even from a location far from the nurse call outlet. Such concerns can be resolved simply by connecting our wireless nurse call linked set to the sensor! Our wireless nurse call linked set allows you to connect bed exit sensors like "Ugo-kun," "Foldable Thin Matta-kun," "Ayumi-chan," and "Just Place Pole-kun" to transmitters and receivers, reducing wiring around the bed area, alleviating concerns about tripping or falling due to cables, and contributing to a tidier work environment. Furthermore, it enables the use of bed exit sensors even from locations far from the nurse call outlet, allowing for more flexible equipment placement.

Jun 05, 2026

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Setting overly optimistic 'projections' compared to reality!? 'Planning Fallacy'

"SBS Marketing Co., Ltd." Tending to set overly optimistic "forecasts"? 'Planning Fallacy'

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  • OTHER

Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer acquisition primarily in the BtoB (business-to-business) sector. On June 4, 2026, we published a page titled "Do We Set 'Forecasts' Too Optimistically Compared to Reality? The 'Planning Fallacy'." The 'Planning Fallacy' refers to the psychological phenomenon of underestimating the time, costs, and risks involved in carrying out tasks while overestimating the benefits. The page explains examples of its occurrence, the factors that lead to it, and methods to overcome it. (Page Overview: Excerpts) ■ What is the 'Planning Fallacy'? ■ Examples of the 'Planning Fallacy' ■ Why does the 'Planning Fallacy' occur? ■ How to overcome the 'Planning Fallacy'? (DL content only) ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/planning-fallacy-2026-06/

Jun 05, 2026

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As heatwave risks continue to rise and workplace heatstroke prevention requirements become increasingly important, how can organizations encourage employees to maintain safe behaviors consistently?

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  • COMPANY

Kort Valuta has released a workplace initiative model that leverages points exchangeable for electronic money to support the adoption of safety and wellness habits. Examples include: ・Hydration reporting ・Viewing heatstroke prevention content ・Pre-shift condition checks ・Voice-based condition checks By linking these activities to incentive points, organizations can encourage voluntary participation while supporting workplace safety and employee well-being. The model is designed not only for frontline environments such as: ・Logistics ・Construction ・Manufacturing but also for office-based health and well-being programs. Safety posters and reminders alone are often not enough to drive lasting behavioral change. We hope this initiative provides a practical example for organizations seeking new approaches to workplace safety and employee engagement. Read the full press release: https://prtimes.jp/main/html/rd/p/000000118.000076589.html #HeatstrokePrevention #WorkplaceSafety #EmployeeWellbeing #HealthManagement #OccupationalHealth #HR #Logistics #Construction #Manufacturing #TwooCa

Jun 05, 2026

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We will explain the drawing verification tool 'Alignment Navi' at the 'On-Site Easy! Latest Technology Seminar Vol. 20'.

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Our company will be presenting at the "On-Site Made Easy! Latest Technology Seminar Vol. 20" (organized by Shinken Shimbunsha)! Kinos Logic will be speaking in Session 3 (15:50 - 17:00). We will provide a clear explanation of the tool "Seigou Navi," which can streamline the review of civil engineering drawings on a PC, using real-life examples. ■ Event Overview Date and Time: June 30, 2026 (Friday) 13:00 - 17:00 *Entry starts at 12:30 Format: Zoom (online broadcast) Capacity: 300 participants for the Zoom live broadcast Participation Fee: Free (Note: Additional fees for continuing education unit application services, etc.) Application Deadline: June 26 (Friday) 17:00 Organizer: Shinken Shimbunsha

Jun 05, 2026

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