Exhibited at Smart Sensing 2025.

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

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

High CO2 accuracy compliant with inclusive building standards! The freedom of design is maximized.

The "SCD43" is a CO2 sensor that achieves class-leading accuracy specifications of ±(30pm + 3% mv). It is also compatible with strict building standards such as ANSI/ASHRAE 62.1-2022 Draft Addendum d, California Title 24, RESET grade B, and the WELL Building Standard (WELL v2). Additionally, it features an extended specified range of up to 5,000ppm and a single-shot operation mode. 【Specifications (partial)】 ■ CO2 output range: 0 - 40000ppm ■ Specified CO2 measurement range: 400 - 5000ppm ■ Accuracy: ±30.0ppm ±3.0% mv ■ Response time (τ63%): 60s *For more details, please download the PDF or feel free to contact us.

• Gas Detection 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

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

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out 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. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out 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. ◎ If a detailed technical explanation is needed, please contact us.

● The production time for casting prototypes can be shortened! Since model production is not required, the time needed to create prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! With one molding process, different products with similar shapes or varying dimensions can be molded at the same time. This allows for the verification of multiple types in a short period.

We will introduce the implementation results of the sensor technology developed by the Hotron Group, which has been cultivated over more than half a century, through customer case studies. In addition to automatic door sensors, we also offer a wide range of vehicle detection sensors and nursing/care sensors. Many implementation examples are also presented, so please take a look at the case study page.

Parking space management refers to the real-time display of parking availability and the management of efficient use of parking spaces. By utilizing Hotron's sensors, drivers can quickly discover available parking spaces, enabling efficient parking lot operations. For large parking lots, we recommend the "Floor Management Method" and "Block Management Method," which focus on cost reduction. Sensors are installed at regular intervals to count and manage the number of passing vehicles. This method offers the advantages of easy installation and low costs. 【Target Products】 - Vehicle Count Sensor CCS2 - Ultrasonic Sensor HM-UX2/UW2 For smaller facilities, we recommend the "Parking Space Management Method," where sensors are installed in each parking space to display availability with high accuracy. By providing reliable occupancy information, this method helps reduce unnecessary entry of new vehicles and ensures safe parking lot operations. 【Target Products】 - Occupancy Detection Sensor HM-UX2/UW2 - Occupancy/Pass Detection Sensor HM-LC6 - Occupancy Detection Sensor HM-LC7/LC7-FLS - Occupancy/Pass Detection Sensor HM-S6 - Occupancy Detection Sensor HM-S8