Refrigerant detection sensor 'SGD43S-M3-S5'

Sensirion exhibited at the "Automotive Technology Exhibition 2026," held at Tokyo Big Sight from June 10 (Wednesday) to June 12 (Friday), 2026. At this exhibition, we showcased sensor solutions for automotive applications, in addition to environmental sensing and flow sensing. We also presented various measurement demonstrations and new products for the first time at the exhibition, allowing many visitors to see the performance and technological capabilities of our products. We would like to express our heartfelt gratitude to all the attendees. 【Main Demonstration Exhibits】 SCD5x New CO2 Sensor SGD4x Refrigerant Detection Sensor SEN6x Indoor Air Quality Combo Sensor Module SLF3x Liquid Flow Sensor Integrated Combo Module for HVAC (SAEN6) Refrigerant (Propane) Leak Detection Sensor Module (SACD4) Window Fog Detection Sensor Module (SAAF4)

Sensirion's "SGD43S-M3-S5" is a robust refrigerant leak detection system designed for HVACR (heating, ventilation, air conditioning, and refrigeration) applications. It utilizes Sensirion's proprietary thermal conductivity technology to achieve high-precision detection for A2L refrigerants (R-32, R-454B). ■ Features - Over 15 years of design life: Maintenance-free with long-term stable operation - Harsh environment compatibility: Operates in -40°C to 85°C, 0 to 100% RH, and 80 to 110 kPa - Easy integration: Dual relay output, RS-485 interface, and mounting bracket included - Self-diagnostic function: Detects faults and lifespan, notifying via relay and LED - Multi-refrigerant compatibility: Detects R-32 and R-454B with a single calibration - Compliance with safety standards: UL 60335-2-40, UL 60335-2-89, RoHS compliant ■ Target Users HVAC design engineers considering the transition to A2L refrigerants For product specifications and case studies, please contact us or use the document download option.

The Sensirion refrigerant leak detection system "SGD43S-M3-Sx" has been certified by UL Solutions (UL60355-2-40). This allows us to provide our customers with a rational UL-certified sensor module that responds to the evolution of refrigerant regulations. The SGD43S-M3-Sx is specially designed as a complete refrigerant detection system (RDS) for the HVACR industry. It is based on the principle of thermal conductivity measurement and features dual relay contact outputs that activate signal relays to enable the startup of blowers, turn off loads, and send alerts to control panels. The status display LED provides quick visual feedback, facilitating easy integration and a user-friendly design for installers. "SGD43S-M3-S5" offers dual calibration in a single device to monitor R-454B and R-32 refrigerant leaks for HVAC applications. "SGD43S-M3-S7" provides triple calibration in a single device primarily for monitoring R-454A, R-454C, and R-455A refrigerant leaks in refrigeration applications. For more details, please check the product page.