Exhibited at Smart Sensing 2026.

Long-term stable CO₂ sensing that does not rely on recalibration.

The SCD53 is a sensor that combines excellent long-term stability and high precision, achieving reliable CO₂ measurements even in harsh environments. It minimizes dependence on self-calibration (ABC/ASC) to maintain long-term accuracy. With photoacoustic NDIR technology and laser technology, it achieves high selectivity and stable measurements. It comes standard with temperature and humidity compensation, and optionally supports pressure compensation. Its compact LGA package also excels in implementability.

• Sensors

Ideal for applications that require compliance with IAQ standards such as RESET!

The "SEN62" is a sensing platform for measuring PM and RH/T. By combining multiple sensors in a form factor, it can measure up to six environmental parameters (PM1, PM2.5, PM4, PM10, T, RH). Its innovative design enables simplification of integration, cost reduction, and customization. At the core of the SEN62 is the new compact MEMS-based particulate matter sensing element, the SPS6x. 【Specifications (partial)】 ■ Mass concentration range: 0 - 1000μg/m3 ■ Standard relative humidity accuracy: 4.5% RH *For more details, please download the PDF or feel free to contact us.

• Sensors

Ideal for applications requiring compliance with IAQ standards such as RESET!

The SEN63C is a sensing platform for measuring PM, RH/T, and CO2. By combining multiple sensors in a form factor, it can measure up to seven environmental parameters (PM1, PM2.5, PM4, PM10, T, RH, CO2). Its innovative design simplifies integration, reduces costs, and allows for customization. At the core of the SEN63C is the new compact MEMS-based particulate matter sensing element, the SPS6x. 【Specifications (partial)】 ■ Mass concentration range: 0 - 1000μg/m3 ■ Standard relative humidity accuracy: 4.5% RH ■ CO2 measurement range: 0 - 32000ppm ■ Accuracy: ±100.0 *For more details, please download the PDF or feel free to contact us.

• Sensors

Suitable for applications that require compliance with IAQ standards such as RESET!

The "SEN65" is a sensing platform for measuring PM, RH/T, VOC, NOx, and CO2. By combining multiple sensors in a form factor, it can measure up to 9 environmental parameters (PM1, PM2.5, PM4, PM10, T, RH, VOC index, NOx index, CO2). Its innovative design allows for simplified integration, cost reduction, and customization. Additionally, the core of the SEN66 is the new compact MEMS-based particulate matter sensing element, the SPS6x. 【Specifications (partial)】 ■ Mass concentration range: 0 - 1000μg/m3 ■ Standard relative humidity accuracy: 4.5% RH ■ Specified CO2 measurement range: 0 - 40000ppm ■ Accuracy: ±50.0 ■ Sensor output: 0-500 VOC Index *For more details, please download the PDF or feel free to contact us.

• Other environmental analysis equipment
• Other Sensors

CO2 sensor for indoor air quality applications with a form factor!

The "STCC4" is one of the world's smallest sensors designed for the direct measurement of CO2 gas concentration. It has greatly expanded the new possibilities for CO2 measurement applications that were previously limited by size and cost constraints. This sensor, designed to be seamlessly integrated into compact electronic devices, is a groundbreaking product in the CO2 sensor market. Additionally, this product utilizes a new technology for thermal conductivity sensing, providing the accuracy required for indoor air quality applications with low power consumption. 【Specifications (partial)】 ■ Designated CO2 measurement range: 400 - 5000ppm ■ Accuracy: ±100.0ppm ±10.0% m.v. ■ Supply voltage: 3.3V ■ Average supply current: 850uA ■ Maximum supply current: 5mA *For more details, please refer to the related links or feel free to contact us.

• Gas Detection Sensor

Covers a wide measurement range from nL to L/min! A new level of liquid flow sensing.

The "SLF3S-4000B" is a liquid flow sensor with a maximum liquid flow rate of 600ml/min. It can be used with the same look and feel as the existing SLF3x flow sensor product line, and users can continue to read data using existing cables or software without customization, eliminating the need for software reprogramming. The portfolio covers a variety of applications, making it suitable for customers who want to adopt sensor technology that allows a single specialist to operate automation solutions and fluid systems. 【Specifications (partial)】 ■ Full-scale flow rate (H2O): 600ml/min ■ Accuracy (H2O): 5% ■ Repeatability (H2O): 0.5% ■ Full-scale flow rate (IPA): 600ml/min ■ Accuracy (IPA): 10% *For more details, please download the PDF or feel free to contact us.

• Flow Sensor

High added value, high versatility, up to 40ml/min! Provides excellent chemical resistance and outstanding media compatibility.

The "SLF3S-1300F" is a liquid flow sensor that combines our long-standing excellent track record in low and minimum flow sensing with a thoroughly optimized mechanical design, elevating its already well-established functionality to a higher level in terms of price-to-performance ratio. This sensor provides the highest level of safety, stability, and long-term reliability across a wide range of fields, including diagnostics, analytical equipment, and life sciences. Based on our proven CMOSens Technology, we optimize costs by simplifying the design without compromising fluid, electrical, or mechanical connections. 【Specifications (partial)】 ■ Full-scale flow rate (H2O): 40ml/min ■ Accuracy (H2O): 5% ■ Repeatability (H2O): 0.5% ■ Full-scale flow rate (IPA): 40ml/min ■ Accuracy (IPA): 10% *For more details, please download the PDF or feel free to contact us.

• Flow Sensor

High added value, high versatility, up to 2ml/min! System design using multiple sensors is possible.

The SLF3S-0600F is a liquid flow sensor that optimizes costs by simplifying design without sacrificing fluid, electrical, or mechanical connections, based on our proven CMOSens Technology. It features a linear flow path without movable parts, and the wetted surface made of inert materials provides excellent chemical resistance and superior media compatibility. When used in diagnostic, analytical instruments, and life sciences, this product achieves fluid control and system reliability, significantly enhancing performance and end-user satisfaction. 【Specifications (partial)】 ■ Full-scale flow rate (H2O): 2ml/min ■ Accuracy (H2O): 5% ■ Repeatability (H2O): 0.5% ■ Full-scale flow rate (IPA): 2ml/min ■ Accuracy (IPA): 10% *For more details, please download the PDF or feel free to contact us.

• Flow Sensor

Media detection function based on thermal conductivity! Our flow detection system, proven in the industry, has evolved further.

The "SLF3C-1300F" is a liquid flow sensor equipped with thermal conductivity functionality, allowing for detailed observation of liquids within applications. By utilizing the thermal conductivity feature, it can measure the thermal conductivity of the liquid after the flow has stopped, enabling the system to accommodate new applications and functions. Additionally, it can distinguish between "working solutions" and "cleaning solutions," ensuring that the cleaning cycle of the equipment is effective. 【Features】 ■ Concentration monitoring ■ Accuracy checks ■ Cleaning confirmation ■ Safety verification *For more details, please download the PDF or feel free to contact us.

• Flow Sensor

It can be integrated into cost-effective and space-efficient solutions!

The "SAEN Series" is an integrated environmental sensor that simplifies in-vehicle air quality monitoring through an all-in-one environmental platform. The modular platform combines multiple sensors in special sizes and shapes, capable of measuring up to 8 environmental parameters (PM1, PM2.5, RH/T, CO, CO2, NOx, VOC). At its core is a miniaturized MEMS-based PM sensing element. By geometrically arranging the light source, detector, signal processing, and algorithms, it can be integrated into a cost-effective and space-efficient solution. 【Features】 ■ All-in-one environmental platform (PM1, PM2.5, RH/T, CO, CO2, NOx, VOC) ■ In-vehicle comfort through CO2 concentration monitoring ■ Fully customizable to meet the needs of various applications ■ Dustproof and long-lasting ■ Simplified integration, cost reduction, and energy savings *For more details, please download the PDF or feel free to contact us.

• Sensors

Optimize the recirculation rate using real-time CO2 measurements to improve efficiency and indoor air quality!

The "SACD series" is a CO2 sensor that accurately and continuously measures CO2 concentration. The CO2 concentration measured inside the vehicle can also be used to utilize recirculation more efficiently, rather than relying on general estimates based on the number of passengers. Additionally, with configurable alarm levels, it enables personalized thresholds, proactive alerts, and timely responses to critical situations. 【Features】 ■ Robust photoacoustic measurement technology ■ Configurable alarm levels ■ Low power monitoring mode ■ Compact design that can be installed discreetly in the vehicle ■ LIN interface, always-on 12V compliant with bus wake-up support *For more details, please download the PDF or feel free to contact us.

• Gas Detection Sensor

We offer multiple options regarding installation methods, electrical interfaces, and more! They can be customized according to your specifications.

The "SAAF Series" is a fog detection/automatic de-icing sensor that enhances visibility while reducing the energy required for defogging and de-icing the windshield, maximizing passenger comfort and safety. This product is fully calibrated, linearized, and temperature compensated, utilizing the thermal coupling of the windshield to communicate the timing for activating the de-icing mode to the HVAC controller. Please feel free to contact us when you need assistance. 【Features】 ■ Calibrated, linearized, and temperature compensated signals ■ Flexible installation with brackets or tape ■ High durability and reliability with automotive-grade connectors ■ Customer-specific solutions *For more details, please download the PDF or feel free to contact us.

• Sensors

Compliant with UL standards for refrigeration and freezing equipment, as well as air conditioning units. Supports IP54, suitable for harsh conditions and outdoor applications.

The "SGD43S-M3-Sx" is a refrigerant detection sensor that has obtained UL certification as an RDS (Refrigerant Detection System) and is compatible with applications using A2L refrigerants. With an IP54 rating for dust and water resistance, it demonstrates stable performance even in outdoor or harsh environments. Based on a detection method utilizing thermal conductivity principles, it achieves fast response and long-term stability, while also offering maintenance-free operation with a lifespan of over 15 years, contributing to both safety and cost-effectiveness. 【Product Lineup】 ◎ For HVAC applications: "SGD43S-M3-S5" Supports monitoring of R-454B and R-32 through dual calibration, compliant with UL60355-2-40. ◎ For refrigeration and freezing applications: "SGD43S-M3-S7" Supports monitoring of R-454A, R-454C, and R-455A through triple calibration, compliant with UL60335-2-89. *For more details, please refer to the materials available for download in the catalog. Feel free to contact us with any inquiries.

• Other Sensors

A2L refrigerant detection sensor "SGD4x" series! Introduction to a complete refrigerant detection system.

The "SGD43S-M3-S5" is a flexible and comprehensive refrigerant leak detection system for HVAC systems. It is based on the principle of thermal conductivity measurement and features dual relay contact outputs that enable the activation of the blower, turning off the load, and sending alerts to the control panel by operating a signal relay. Additionally, it provides quick visual feedback through a status display LED, achieving easy integration and a design considerate of installers. 【Specifications (partial)】 ■ Refrigerants: R-32, R-454B (dual calibration) ■ Connector port: 8-pin sealable connector ■ Accuracy under ambient conditions: ±2.5% LFL ■ Response time: 30.0s ■ Lifespan: > 15 years ■ Compliance: UL 60335-2-40 (4th edition) *For more details, please refer to the related links or feel free to contact us.

• Other Sensors

One unit can support applications using refrigerants R454A, R454C, and R455A!

The "SGD43S-M3-S7" is a complete refrigerant detection system specially designed for the HVACR industry. With rapid visual feedback provided by the status display LED, it achieves easy integration and a design considerate of installers. It also ensures effective leak detection and complies with stringent industry standards, including "UL60355-2-40" and "UL60335-2-89." 【Specifications (partial)】 ■ Refrigerants: R-454A, R-454C, R-455A (triple calibration) ■ Connector port: 8-pin sealable connector ■ Accuracy under ambient environmental conditions: ±2.5% LFL ■ Response time: 30.0s ■ Lifespan: > 15 years *For more details, please refer to the related links or feel free to contact us.

• Other Sensors

CLT, which has been widely adopted in the construction field, is now expanding its applications into the civil engineering sector. The "Hyper CLT Mats" are civil engineering CLT products that utilize wood CLT as temporary materials. Traditionally, steel plates have been the mainstream choice for temporary roads, access routes, and heavy machinery yards. The Hyper CLT Mats introduce a new option of "wood" to that market. The 5x10 mats weigh approximately 230 kg, making them lightweight and easy to install and remove with small machinery, with a maximum capacity of 40 mats on a 10-ton truck. They also have advantages in terms of workability and transportation efficiency. Moreover, they offer added value that can only be achieved with wood, such as glare reduction, noise control, CO2 fixation, and consideration for aesthetics. This product is expected to be a new proposal for not only construction companies but also building material firms, lumber companies, and material trading companies. It is a registered technology with the Ministry of Land, Infrastructure, Transport and Tourism under NETIS, with the registration number "TH-250021-A." The use of wood is not limited to construction anymore. The utilization of Hyper CLT Mats is expanding as a new market that connects civil engineering and wood.

Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

This is a collection of links to Fukuda's technical columns. It covers various topics related to leak tests and more... Please check the related links for more information.

In civil engineering sites such as mountainous areas and construction sites, it may be necessary to use wooden boards on slopes or inclined access roads. Hyper CLT boards are civil engineering materials utilizing wood CLT, which can be laid not only on flat ground but also on sloped terrain. They can be used for temporary roads, access routes, heavy machinery entry paths, and measures against muddy conditions, creating a driving environment that takes advantage of the unique surface characteristics of wood. The 5×10 board weighs approximately 230 kg, and the 5×20 board weighs about 460 kg, making them lightweight and easy to install and remove even with small machinery, which is a notable feature for maneuverability in narrow sites. This wooden board is registered as a technology under the Ministry of Land, Infrastructure, Transport and Tourism's NETIS system as "TH-250021-A," and can also be utilized for safety measures and innovative ideas in public works.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" or "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material with heat. Repairs can be performed even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.