KELLER will exhibit at the International Space Business Expo SPEXA! May 27-29, 2026, at Tokyo Big Sight, South Hall 3-4, S8-40.

Small pressure sensor with welded structure covering from 0 to 10 kPa up to 0 to 100 MPa!

The welded structure small pressure sensor 23SY/25Y is designed to meet the advanced and diverse requirements of industrial applications, including pressure range, pressure connection, output signal, and electrical connection (25Y features a flush diaphragm structure). The modular concept allows for high flexibility in specifications and enables quick response times. A temperature sensor is integrated into the circuit, correcting errors caused by temperature changes and contributing to improved overall accuracy. We can also offer intrinsically safe explosion-proof types 23SYEi and 25YEi. 【Features】 - Wide temperature compensation: ± 0.7 %FS @ -10 ~ 80℃ - Minimum pressure range starting from 10 kPa - Excellent long-term stability - Robust SUS housing - Option: Intrinsically safe explosion-proof type (23SY-Ei) 【Technology】 - Piezo-resistive pressure sensor - Welded structure without internal seals - Analog output: 4 ~ 20 mA, 0 ~ 5 V, 0 ~ 10 V, etc.

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Ultra-compact pressure sensor with a minimum diameter of 17mm, covering from 0 to 200kPa up to 0 to 100MPa!

The pressure sensor series 21Y features a welded structure that does not use internal seals. It has an insulation voltage of 300VDC, making it less susceptible to disturbances. A temperature sensor is integrated into the circuit to correct output errors caused by temperature changes, resulting in improved overall accuracy and TEB. 【Features】 • Wide range of temperature compensation • Ultra-compact, ideal for applications with limited installation space • Robust SUS housing • Excellent long-term stability 【Technology】 • Piezo-resistive pressure sensor • Welded structure without internal seals • Compact with analog output: 4–20mA, 0–10V, etc.

• Pressure

High-precision pressure sensor with RS485 digital output. Atmospheric pressure range (800 to 1200 hPa) is also available!

The pressure sensor 33X achieves an extremely high accuracy of 0.05% full scale (FS) in the temperature range of 10 to 40°C through a mathematical correction method. An additional option for high precision of 0.01% FS is also available. In addition to a digital RS485 interface, analog current or voltage outputs can be obtained. 【Features】 - Accuracy of ±0.05% FS in the temperature range of 10 to 40°C - Standard dual outputs of digital RS485 and analog output - Analog output can be range-adjusted via digital RS485 - Available in barometric range type (800–1200 hPa) and differential pressure range type (from 0–30 kPa to 0–3 MPa) - Temperature range of -20 to 125°C (optional -40°C also available) - Excellent long-term stability 【Technology】 - Piezo-resistive pressure sensor - Correction technology using a mathematical model to produce accurate pressure values

• Pressure

Ideal for measuring pulsations and unsteady behavior with a bandwidth of 50 kHz, temperature-resistant up to 180°C, built-in amplifier (0-10V output) high-precision pressure sensor.

The ultra-high-speed pressure sensor M5HB can measure not only static pressure but also pressure changes within a bandwidth of 0 to 50 kHz. This is achieved by the digital circuit continuously adjusting the analog signal in real-time, with an output of 0 to 10V. The compact sensor head with M5 fine thread can be used at temperatures up to 180°C. It has a pressure resistance of up to five times the measurement range and is an excellent model for vibration resistance. 【Features】 - Temperature resistance of the sensor head: 180°C - Output is an analog signal of 0 to 10V (with built-in amplifier) - Wide temperature compensation range: -20 to 125°C or -40 to 180°C - Bandwidth of 50kHz, ideal for measuring pulsations and unsteady behavior - Resistant to impacts and vibrations - Compact design, pressure connection is M5×0.5 fine thread

• Pressure

±0.05% accuracy / Digital pressure gauge with logging function, explosion-proof type available

The high-precision digital pressure gauge LEO Record can record pressure and temperature for extended periods thanks to its memory function. The data logger can be connected to a computer via an RS485 interface for reading the recorded data. The current pressure value can be displayed in multiple pressure units. It is powered by a 3.6V lithium battery. An intrinsically safe explosion-proof type is also available. 【Features】 - Can record pressure and temperature for long periods - High precision (±0.05%FS @ 20–25 °C) - Ultra-low power consumption, long battery life - Can display in various pressure units (bar, mbar, hPa, kPa, MPa, PSI, kg/cm2, cmH2O, mH2O, etc.) - Zero point calibration via button - Intrinsically safe explosion-proof type available

• Pressure

[Instructor] Hiroyuki Sakai, President of MANAGEMENTIVA Co., Ltd. (Former Community Manager of Real Madrid CF) [Key Lecture Content] The 2026 Soccer World Cup, held in North and Central America with the United States as a sports business powerhouse, concluded with great success. However, it is also true that events occurred behind the scenes that far exceeded imagination. Many new trends in activities were confirmed around the local stadiums. What has changed in business, and how? Was it successful or not? What hints can we gather for the future? Which aspects should the Japanese sports industry adopt? Furthermore, the relationship with politics that attracted attention. It has been said that this should ideally be separated... Using the World Cup as a case study, I will discuss the latest business situation.

[Speaker] Mr. Takaki Miyazaki, President and CEO of NTT Circulast Corporation Director Ms. Saori Koga [Key Lecture Content] Resource circulation is becoming increasingly important from the perspectives of decarbonization and resource security, with rising expectations particularly for non-ferrous metals such as copper. However, there is a challenge in that the "flow of goods" supporting resource circulation and the "flow of information" conveying their value are disconnected, leading to insufficient communication of characteristics such as the origin of recycled materials and environmental impact, resulting in the circulation value not being properly recognized and evaluated in the market. In this lecture, we will introduce the background behind the establishment of NTT Circulast by NTT and Mitsubishi Materials, as well as the business concept that connects the flow of information and goods. Additionally, we will discuss future prospects for realizing a market where circulation value is chosen, taking into account trends in international standardization (ISO).

[Speaker] Yuto Noro, Partner Attorney at TMI General Legal Practice [Lecture Topics] 1. EU Digital Regulations and the EU Cyber Resilience Act (1) Recent important EU digital regulations and the EU Cyber Resilience Act (2) What is the EU Cyber Resilience Act? (3) Problematic cases 2. Scope of Application of the EU Cyber Resilience Act (1) Products with digital elements (2) Logical or physical data connections placed on the market / direct or indirect (3) Important products / critical products 3. Specific Regulations of the EU Cyber Resilience Act (1) Obligations of manufacturers (2) Obligations of importers (3) Obligations of distributors 4. Practical Responses to the EU Cyber Resilience Act (1) Methods of practical response (identifying target products / gap analysis / implementation) (2) Examples of practical responses (technical implementation / documentation implementation / operational implementation) 5. Q&A / Business Card Exchange

[Speaker] Mr. Kimihiro Horiuchi, President and CEO of Data Driven Consulting Inc. [Key Lecture Content] We are confident in the strategies created in collaboration with our internal elite and external consultants. However, we are not achieving the results we desire. Many companies facing such challenges share a common issue: a lack of execution power to realize their strategies. On the other hand, when we talk about increasing execution power, it involves complex factors such as sales, human resources, organization, and marketing, making it difficult to find effective solutions. In this lecture, we will introduce a method for building an organization with overwhelming execution power by thoroughly refining the PDCA (Plan-Do-Check-Act) cycle, which should be practiced by everyone, aimed at business owners and middle management who are struggling with such concerns.

[Speaker] RAUL Co., Ltd. President and CEO Kenji Eda, Director of the Energy Information Center [Key Lecture Content] With the expansion of renewable energy adoption, there is growing interest in Virtual Power Plants (VPP) that utilize small grid-connected storage batteries, as well as storage batteries for homes, stores, and businesses, solar power generation, and electric vehicles (EVs). This lecture will clarify the differences between low-voltage grid-connected storage batteries and VPPs, the structure of equipment and operations, the structure of revenue generation, and the roles of key players from the basics. Furthermore, we will discuss overseas examples from Australia, the United States, and the United Kingdom, explaining the differences with Japan and key points for commercialization. Without delving deeply into complex systems or technical details, we will clearly introduce practical perspectives on entry methods, challenges and risks, and future market outlooks. [Lecture Items] 1. Basic overview of low-voltage grid-connected storage batteries and VPPs 2. Structure of equipment and business for low-voltage grid-connected storage batteries 3. How storage batteries and VPPs generate revenue 4. Overview of VPP and aggregation business 5. Case studies of storage batteries and VPPs overseas 6. Challenges of commercialization, entry methods, and future outlook 7. Q&A / Business card exchange