Smart Thermostat | Sensirion's sensor technology achieves high precision, reliability, and energy efficiency. Visualizing air quality with STCC4 and SHT40.

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

Enabling smooth testing across various applications.

The "SEK-STCC4" is a CO₂ evaluation kit. Integrates STCC4 into the development board. [Included items] ■ STCC4 development board × 1 ■ Adapter cable × 1 ■ Jumper wire set × 1 * SEK-SensorBridge is required separately. Please feel free to contact us if you have any requests. * For more details, please refer to the related links or feel free to contact us.

• Sensors
• Evaluation Board
• Other Sensors

For industrial applications! Various output characteristics and membrane filters are available according to your needs.

The "SHT40I-HD1B" is an analog temperature and humidity sensor developed for demanding industrial applications such as refrigerators and air conditioners, as well as other applications where system noise levels are high and the application of digital solutions is difficult. It features a supply voltage of 5V, a robust housing, and high ESD resistance, making it suitable for harsh environmental requirements. Additionally, with the optional variable power heater, it can be used in extremely challenging environments such as stable high humidity or condensation environments. 【Specifications (partial)】 ■Humidity - Standard relative humidity accuracy: 2.5% RH - Operating relative humidity range: 0-100% RH - Response time (T63%): 4s *For more details, please download the PDF or feel free to contact us.

• Sensors

The integration of the SHT40I and PTFE membrane filter enhances protection against particles and enables sensing under harsh conditions.

The "SHT40I-HD1F" is an analog temperature and humidity sensor with a filter thin film, featuring a supply voltage of 5V, a robust housing, and high ESD resistance, suitable for the requirements of harsh environments. It is developed for demanding industrial applications such as refrigerators and air conditioners, as well as other applications where system noise levels are high and the application of digital solutions is challenging. With the optional periodically variable power heater, it can be used in extremely harsh environments, such as stable high humidity or condensation environments. 【Specifications (partial)】 ■Humidity - Standard relative humidity accuracy: 2.5% RH - Operating relative humidity range: 0-100% RH - Response time (T63%): 4s *For more details, please download the PDF or feel free to contact us.

• Sensors

Provides a supply voltage of 5V, maximum level of robustness, and excellent ESD protection!

The "SHT40I-BD1B" is a digital temperature and humidity sensor that employs Sensirion's proven CMOSens technology, ensuring high reliability. It is based on a wealth of features and our advanced expertise in humidity detection, making it suitable for measurements under harsh conditions in industrial applications. Please feel free to contact us if you have any inquiries. 【Specifications (partial)】 ■Humidity - Standard relative humidity accuracy: 2% RH - Operating relative humidity range: 0-100% RH - Response time (T63%): 4s *For more details, please download the PDF or feel free to contact us.

• Sensors

The integration of the SHT40I and PTFE membrane filter enhances protection against particles and enables sensing in harsh conditions!

The "SHT40I-AD1F" is a digital temperature and humidity sensor with a filter membrane that utilizes Sensirion's proven CMOSens technology, ensuring high reliability. It features a wide operating voltage range, compact design, and robust housing, allowing for seamless integration. Based on a wealth of features and Sensirion's advanced expertise in humidity detection, it is well-suited for measurements under harsh conditions in industrial applications. 【Specifications (partial)】 ■Humidity - Standard relative humidity accuracy: 2% RH - Operating relative humidity range: 0-100% RH - Response time (T63%): 4s - Calibration certificate: factory calibrated *For more details, please download the PDF or feel free to contact us.

• Sensors

Standard relative humidity accuracy of 2% RH! Suitable for measurements under harsh conditions in industrial applications.

We would like to introduce the digital temperature and humidity sensor 'SHT40I-AD1B' that we handle. This sensor features a wide operating voltage range, compact design, and robust housing, allowing for seamless integration. It provides a supply voltage of 5V, top-level durability, and excellent ESD protection. 【Specifications (partial)】 ■Humidity - Standard relative humidity accuracy: 2% RH - Operating relative humidity range: 0-100% RH - Response time (T63%): 4s - Calibration certificate: Factory calibrated *For more details, please download the PDF or feel free to contact us.

• Sensors

Reduced power consumption and improved accuracy specifications! Built with an optimized new CMOSens chip.

The SHT40-BD1F is a temperature and humidity sensor with a filter thin film, featuring ±1.8% RH and 0x45 I2C output. The integration of the SHT4x and PTFE membrane filter enhances protection against particles, enabling sensing in harsh conditions. It complies with relevant healthy building standards, including RESET and WELL Building Standard. Additionally, it boasts the best price-performance ratio in the market. 【Specifications (excerpt)】 ■ Standard relative humidity accuracy: 1.8% RH ■ Operating relative humidity range: 0-100% RH ■ Response time (T63%): 4s ■ Average supply current: 0.4uA ■ Size (LxWxH): 1.5×1.5×0.69mm *For more details, please download the PDF or feel free to contact us.

• Sensors
• Other temperature and humidity measuring instruments

Expanded supply voltage range of 1.08V to 3.6V! Suitable for mobile and battery-powered applications.

The SHT40-AD1F is a temperature and humidity sensor with a filter thin film, featuring ±1.8% RH and a 0x44 I2C output. By integrating the SHT4x with a PTFE membrane filter, it enhances protection against particles, enabling sensing in harsh conditions. It is built with a completely new CMOSens chip optimized to reduce power consumption and improve accuracy specifications. 【Specifications (excerpt)】 ■ Standard relative humidity accuracy: 1.8% RH ■ Operating relative humidity range: 0-100% RH ■ Standard temperature accuracy: 0.2℃ ■ Supply voltage: 1.08-3.6V ■ Size (LxWxH): 1.5×1.5×0.69mm *For more details, please download the PDF or feel free to contact us.

• Sensors
• Other temperature and humidity measuring instruments

The best price-performance ratio in the market! Compliant with healthy building standards RESET and WELL Building Standard.

The "SHT40-BD1B" is a digital temperature and humidity sensor with an accuracy of ±1.8%/maximum ±3.5% RH and a 0x45 I2C output. It has an extended supply voltage range of 1.08V to 3.6V, making it suitable for mobile and battery-powered applications. Additionally, its very small size housed in a robust DFN package allows for integration into challenging designs while meeting reliability requirements, as demonstrated by JEDEC JESD47 certification. 【Specifications (excerpt)】 ■ Standard relative humidity accuracy: 1.8% RH ■ Operating relative humidity range: 0-100% RH ■ Standard temperature accuracy: 0.2℃ ■ Supply voltage: 1.08-3.6V ■ Average supply current: 0.4uA *For more details, please download the PDF or feel free to contact us.

• Sensors
• Other temperature and humidity measuring instruments

Very small size of the robust DFN package! Suitable for mass production applications.

The "SHT40" is a digital temperature and humidity sensor with an accuracy of ±1.8%/maximum ±3.5% RH. It is built with a completely new CMOSens chip optimized to reduce power consumption and improve accuracy specifications. It has an extended supply voltage range of 1.08V to 3.6V, making it suitable for mobile and battery-powered applications. The very small size of the robust DFN package allows it to be integrated into challenging designs and meets the highest level of reliability requirements demonstrated by JEDEC JESD47 certification. 【Specifications (excerpt)】 ■ Standard relative humidity accuracy: 1.8% RH ■ Operating relative humidity range: 0-100% RH ■ Supply voltage: 1.08-3.6V ■ Average supply current: 0.4uA ■ Size (LxWxH): 1.5×1.5×0.5mm *For more details, please download the PDF or feel free to contact us.

• Sensors
• Other temperature and humidity measuring instruments

Dear Sir/Madam, I hope this message finds you well and thriving. I would like to express my sincere gratitude for your continued support. We would like to inform you that our company will be closed for summer vacation during the following period: ■ Summer Vacation Period From Saturday, August 8, 2026, to Sunday, August 16, 2026. We will resume normal operations on Monday, August 17, 2026. Inquiries received during the vacation period will be addressed sequentially after the start of business. We apologize for any inconvenience this may cause and appreciate your understanding.

Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed 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 properties. We will propose the appropriate 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)

In civil engineering sites, the use of sheet piling methods is essential for safely utilizing the site, including temporary roads, access roads, heavy machinery work yards, material storage areas, and worker pathways. Traditionally, steel plates have been widely used, but due to their weight, they can be cumbersome to transport, install, and remove. Hyper CLT sheet piles are civil engineering materials made from wooden CLT for civil use. The 5×10 panel weighs approximately 230 kg, and the 5×20 panel weighs about 460 kg, making them lightweight and easy to handle with small machinery, contributing to reduced burdens during installation and improved work efficiency. They can be utilized in a wide range of civil engineering sites for measures against muddy conditions, ground protection, heavy machinery scaffolding, and ensuring pedestrian pathways. As a registered technology under the Ministry of Land, Infrastructure, Transport and Tourism NETIS "TH-250021-A," it is also recommended as a material for innovative ideas, safety measures, and environmental considerations in public works.

Fukuda's new flagship model. - Masterless type (FLA-0200 series) - General type (FLA-0201 series) Two models of air leak testers. With the mastering correction function, high-precision measurements can be achieved in a short time. Please take a look at the catalog.

Fukuda Co., Ltd., which develops, manufactures, and sells leak testing equipment to inspect airtightness and sealing performance, provides a technical document that clearly explains the methods and theories of airtight testing, titled "Technical Manual." We are offering it as a PDF file. Please take this opportunity to download and view it!