Japan Build: Announcement of Participation in the 10th Smart Building Expo

Compatible with a wide range of devices in various output formats. CO2 sensor suitable for small to medium-sized facilities and local control.

The CO2 sensor and controller "NMA/SMA series" measures indoor CO2 concentration, temperature, and humidity, displaying the data in real-time. It has a lineup that can accommodate various outputs and allows for control of devices based on the measured values. Please utilize it for energy saving and environmental improvement in new and existing buildings, as well as for enhancing efficiency in agriculture. 【Use Cases】 ■ Construction Sector: CO2 control for ventilation fans, total heat exchangers, dampers, etc., and integration with central monitoring and air conditioning systems. ■ Agriculture Sector: Control of CO2 generators. 【Implementation Effects】 ■ Improvement of indoor environment (realization of comfortable spaces) ■ Reduction of electricity costs (energy saving) ■ Increased productivity of crops. 【Exhibition Information】 We plan to exhibit at the largest construction industry exhibition, Smart Building Expo 2025. ■ Venue: Tokyo Big Sight ■ Dates: December 10 (Wednesday) to 12 (Friday), 2025 ■ Booth Number: 33-25 *Advance registration is required for attendance.

• Automatic Control Equipment

Display odor levels on a scale of 100 and visualize odors and CO2 concentration! Also, the effects of improving indoor environments and reducing electricity costs.

With the "Odor CO2 Dual Sensor Controller," you can measure not only the CO2 concentration in indoor spaces but also odors. It achieves energy savings and a comfortable indoor environment simultaneously through appropriate control of ventilation equipment or deodorizing devices based on those values. 【Recommended for the following people!】 ■ Those considering easy energy-saving solutions for small to medium-sized facilities ■ Those who have concerns about comfort with CO2 control alone ■ Those considering odor and CO2 control in newly constructed buildings ■ Those interested in the "visualization" of indoor environments 【Benefits of Implementation】 ■ Improvement of indoor environment (realization of a comfortable space) ■ Reduction of electricity costs (energy savings) *For more details, please contact us or download the PDF to view.

• Other measuring instruments

For optimal CO2 concentration management in greenhouses! The world's first CO2 controller compatible with "zero concentration difference CO2 application."

The "SA-K Series" is an agricultural CO2 controller that works in conjunction with CO2 generators to maintain the CO2 concentration in greenhouses at appropriate levels. When the ventilation windows are open, it applies zero concentration difference CO2, and when the windows are closed, it applies high concentration CO2, allowing for automatic switching control (managed by a single CO2 sensor). 【What is zero concentration difference application?】 This is the application of CO2 that brings the indoor and outdoor CO2 concentration difference to zero. Even with the windows open, during photosynthesis, the indoor CO2 concentration decreases (250-350 ppm) compared to the outdoor air (400-450 ppm), resulting in about a 20% reduction in photosynthesis compared to using outdoor air. With zero concentration difference application, CO2 is absorbed by plants without waste, enabling photosynthesis to occur with nearly 100% efficiency. 【What is high concentration CO2 application?】 By setting the indoor CO2 concentration to a high level (700-1000 ppm), it can further promote the photosynthesis of crops. 【Recommended for those who:】 ■ Find it cumbersome to manage CO2 concentration in greenhouses ■ Want to improve production efficiency 【Benefits of introduction】 ■ Reduction of labor in operations ■ Improvement in plant production efficiency *For more details, please refer to the PDF materials or feel free to contact us.

• Automatic Control Equipment

Achieve an indoor environment management system at a low cost! It can be utilized for "energy saving," "improvement of indoor environment," and "infection control" in facilities!

The comprehensive consulting service for indoor environment improvement, "Ultimate IAQ," is a remote monitoring cloud service for small and medium-sized facilities. Through smartphones and PCs, it allows for real-time remote monitoring of the indoor environment (CO2 concentration, ozone concentration, odor level, temperature, humidity) measured by sensors. In the event of detecting abnormal values, it will notify users via email, enabling the implementation of measures to improve the indoor environment. Additionally, by analyzing the big data of the indoor environment accumulated in the cloud, it can predict the causes of abnormal values and propose improvement measures such as maintenance or replacement of equipment, thereby achieving suitable facility operations for customers from the perspectives of comfort, safety (including infection control), and energy efficiency. 【Recommended for the following individuals!】 ■ Small to medium-sized facilities that have not yet implemented remote monitoring and want to manage the indoor environment of multiple locations and spaces collectively. ■ Those who want to improve comfort and achieve energy savings through operational improvements of equipment. 【Implementation Effects】 ■ Improvement of the indoor environment (realization of a comfortable space) ■ Reduction of electricity costs (energy savings) *For more details, please contact us.

• Monitoring and Control Equipment

Realizing a healthy space and good indoor environment through the visualization of CO2 concentration!

The "Marvel 001/003・301" is a CO2 monitor developed to detect carbon dioxide levels inside buildings, aiming to provide "visualization of ventilation" and "comfortable spaces." It can be used as a guideline for ventilation. We also offer built-in data loggers that can record CO2 levels, temperature, and humidity, as well as large models with high visibility for spacious areas. 【Recommended for the following people!】 ■ Those who want to maintain a comfortable indoor environment ■ Those who want to provide a safe and secure space for users ■ Those considering infection control measures ★ We are currently running a campaign, making it more affordable to purchase. For more details, please contact us or download the catalog.

• Other measuring instruments

In addition to indoor CO2 levels, visualize ozone concentration! Creating a more comfortable and clean environment in hospitals and care facilities.

The "Ozone CO2 Dual Sensor Controller" is a product that measures the indoor ozone and CO2 concentrations and enables proper automatic control of ventilation equipment and ozone generators. Ozone is gaining attention as a means of disinfecting the air. However, due to concerns about its effects on the human body at high concentrations, it is necessary to maintain it at low concentrations (0.05 to 0.1 ppm). This product not only reduces air conditioning load through CO2 control but also incorporates an ozone sensor. By linking it with an ozone generator, it aims to maintain ozone at low concentrations, creating a safer and cleaner space. 【Recommended for the following people!】 ■ Those who want to achieve energy savings and a cleaner space ■ Those interested in the "visualization" of indoor environments 【Implementation Effects】 ■ Measures indoor ozone and CO2 concentrations ■ Enables automatic control of appropriate ventilation equipment and ozone generators based on ozone and CO2 concentrations ■ Improves indoor environment (realization of a comfortable space) ■ Reduces electricity costs (energy savings) *For more details, please contact us or download the PDF for more information.

• Other measuring instruments

Daitō Shikō Co., Ltd. will exhibit at the "26th Promotion EXPO Spring" held at Tokyo Big Sight from Wednesday, April 22, 2026. At the exhibition venue, we plan to showcase a variety of original goods, including support merchandise, fans, sticker books, replica tickets, and more. If you are looking for SP tools, promotional items, or novelties, please be sure to visit our booth.

~ A high-efficiency customer attraction strategy where homebuyers come in saying "I saw it on ○○!" and a product/design strategy that is specifically requested with "I want to build with Harbor!" ~ In an era where simply creating a "good house" is not enough to survive, the environment surrounding local construction companies is becoming more challenging than ever due to rising material costs, labor shortages, and intensified competition with major companies. In this context, Harbor House, which has been established for 19 years in the fiercely competitive Niigata Prefecture, has achieved an annual completion of 450 houses and is now ranked number one in the number of construction starts in Niigata Prefecture. Its strength lies not in a single charismatic leader, but in a thoroughly refined "system." Customers who say, "I came after seeing your website" are reliably guided to contracts through a highly efficient sales flow based on "batting average management." In this online seminar, we will generously share the know-how of customer attraction, product, and management practices that Harbor House implements with business owners. We will present the shortest route to becoming a "construction company that continues to be chosen" in your business area. ◇ Detailed information and application https://x.gd/pUe2b ◇ Phone inquiries TEL: 025-383-8881

The demonstration showcases a variety of AI solutions, including AI-equipped PCs, workstations, the Japanese facial AI avatar "Aine," digital assistants, the compact desktop "Dell Pro Max with GB10" (equipped with NVIDIA GB10), rack-mounted solutions, and conference audio equipment. Digital assistants are already being implemented across a wide range of fields, including finance, healthcare, government agencies, and local municipalities, with expanding applications in marketing, customer service, and operational efficiency. This exhibition provides a valuable opportunity to directly see how "Aine" can contribute to solving business challenges.

"Connecting technology and field knowledge to accelerate implementation" We provide a space to co-create "solutions that can be used from tomorrow" by merging real challenges from the field with cutting-edge digital technologies (spatial, ground, DX), going beyond mere technology demonstrations. 【Event Overview】 Date: June 5, 2026 (Friday) Main session 13:30–17:30 Networking event: 17:45–19:45 Format: Akihabara Hall (3 Kanda Neribeicho, Chiyoda-ku, Tokyo) or Zoom webinar Expected attendees: 200 people Speakers: International Kogyo Co., Ltd. / Texar Co., Ltd. / Just Co., Ltd. / Toshiba Lighting & Technology Corporation / Ground Network Holdings Co., Ltd. / Nihon University College of Science and Technology, Department of Architecture Special website for the conference:

During the event, many companies shared common challenges such as: ・ Increasing employees’ net income without raising base salary ・ Preventing turnover through better benefits ・ Reducing bank transfer and operational costs TwooCa combines digital payments and employee benefits to help companies achieve: ・Higher real disposable income for employees ・ Improved engagement ・ Reduced transfer fees and administrative costs All sessions and booths are still available during the replay period. Please take this opportunity to visit the TwooCa online booth. ◆Register here https://it.expo.it-trend.jp/key/fjbpth3r ◆Replay available until March 22 (JST) Watch anytime, online