R290 Refrigerant Leak Sensor - R2

This MAXMAC-developed automotive-grade R290 (propane) refrigerant leak sensor module is designed for safety monitoring in new energy vehicle thermal management systems and HVAC systems. It offers high sensitivity, fast response, and excellent anti-interference capability for stable operation under high temperature, vibration, and complex electromagnetic environments.

  • Automotive-grade design for demanding operating conditions
  • High sensitivity for rapid refrigerant leak detection
  • Long-life structure for maintenance-free operation
R290 Refrigerant Leak Sensor
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Sensor Technology Principle
R290 Sensor Principle Diagram
R290 Sensor Principle Diagram
Technical Specifications
R290 Refrigerant Leak Sensor
Measurement Principle
Non-Dispersive Infrared (NDIR)
Measurement Range
0~100% LFL
Resolution
0.1% LFL
Measurement Interval
4 s
Accuracy
± 2.5% LFL @0%~25% LFL
± 5% LFL @25%~70% LFL
± 10% LFL @70%~100% LFL
Warm-Up Time
≤10 s
Response Time
≤20s (τ25%)
Service Life
>=15 years
Operating Voltage
4.5~5.5 VDC or 9~28VDC
Operating Current
Average approx. 16 mA, peak 300mA (duration <10ms / sampling cycle)
Operating Temperature
-40℃ ~ 90℃
Operating Humidity
5% ~ 95% RH, non-condensing
Storage Temperature
-40℃ ~ 95℃
Dimensions
72 mm * 71 mm * 19 mm
Weight
≈ 25 g
Interface
RS485
Applications
New Energy Thermal Management Safety Monitoring / Refrigerant Leak Warning

New Energy Thermal Management Safety Monitoring / Refrigerant Leak Warning

Designed for new energy vehicle heat pump HVAC systems and battery thermal management systems, the R290 sensor monitors combustible refrigerant leakage in the refrigerant circuit in real time and triggers timely warning and linked control. It helps reduce safety risks caused by leakage and improves the reliability and operational safety of the vehicle thermal management system, making it suitable for new energy passenger and commercial vehicles.

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R290 Refrigerant Leak Sensor - R1

R290 Refrigerant Leak Sensor - R1

Developed in-house by MAXMAC, the R290 (propane) refrigerant leak sensor module is designed for safety monitoring in A/C systems and industrial applications. It offers high sensitivity, fast response, and excellent anti-interference capability for stable operation under heat, vibration, and complex electromagnetic environments.

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R290 Refrigerant Leak Sensor - R2

R290 Refrigerant Leak Sensor - R2

This MAXMAC-developed automotive-grade R290 (propane) refrigerant leak sensor module is designed for automotive safety monitoring. It offers high sensitivity, fast response, and excellent anti-interference capability for stable operation under high temperature, vibration, and complex electromagnetic environments.

Learn More