Refrigerant detection sensor 'SGD43S-M3-S7'
One unit can support applications using refrigerants R454A, R454C, and R455A!
The "SGD43S-M3-S7" is a complete refrigerant detection system specially designed for the HVACR industry. With rapid visual feedback provided by the status display LED, it achieves easy integration and a design considerate of installers. It also ensures effective leak detection and complies with stringent industry standards, including "UL60355-2-40" and "UL60335-2-89." 【Specifications (partial)】 ■ Refrigerants: R-454A, R-454C, R-455A (triple calibration) ■ Connector port: 8-pin sealable connector ■ Accuracy under ambient environmental conditions: ±2.5% LFL ■ Response time: 30.0s ■ Lifespan: > 15 years *For more details, please refer to the related links or feel free to contact us.
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【Other Specifications (Partial)】 ■Supply Voltage: 24V ■Operating Temperature Range [°C]: -40 - 85°C ■Operating Temperature Range [°F]: -40 - 185°F ■Interface: ModBus, RS485 ■Size (LxWxH): 90 x 55 x 24mm ■Size (LxWxH) [inch]: 3.54 x 2.17 x 0.94inch *For more details, please refer to the related links or feel free to contact us.
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Exhibited at Smart Sensing 2026.
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)
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Sensirion's refrigerant leak detection system "SGD43S-M3-Sx" has been officially certified by UL Solutions.
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.
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Sensirion's mission is to provide sensors and sensor solutions with excellent design and reliability, becoming the number one partner for our customers. We aim to elevate the standards of sensor technology by leveraging technology intelligence. In doing so, we contribute to improving the sustainability, efficiency, health, safety, and quality of life for people and businesses. We pursue a common goal of shaping the future of the automotive industry, industrial sectors, building and HVAC technology, medical technology, and consumer electronics through innovation in collaboration with our partner companies and customers. Sensirion was founded in 1998 and currently has about 1,000 employees at its headquarters in Stäfa, Switzerland, and numerous subsidiaries around the world.