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.

  • High accuracy for reliable hazard detection
  • High sensitivity for rapid refrigerant leak detection
  • Long-life structure for maintenance-free operation
R290 Refrigerant Leak Sensor - R1
Sensor Technology Principle
R290 Sensor Principle Diagram
R290 Sensor Principle Diagram
Technical Specifications
R290 Refrigerant Leak Sensor
Detection Range
R290: 0 ~ 10,000 ppm (optional 0 ~ 20,000 ppm)
Protection Rating
IP65 (dustproof and water spray resistant, suitable for equipment rooms, cold storage, and outdoor unit areas)
Detection Accuracy
± (5% of reading + 50 ppm)
Supply Voltage
DC 9 V ~ 24 V (compatible with standard industrial 12V / 24V systems)
Response Time
T90 ≤ 15 s (typical) / optional T90 ≤ 10 s (high-response version)
Communication Interface
RS485 / Modbus RTU (standard) / relay alarm output (optional) / UART (optional)
Operating Temperature
-20°C ~ +60°C (standard industrial version) / optional -40°C ~ +85°C (harsh-environment version)
Installation Location
Refrigeration equipment rooms, near compressors and valve groups, around condensing units, cold storage equipment rooms, HVAC maintenance zones, and return air vent areas
Storage Temperature
-40°C ~ +85°C (optional +95°C)
Applications
Industrial Safety and Environmental Monitoring

Industrial Safety and Environmental Monitoring

Suitable for heat pump production, refrigeration system assembly, laboratory testing, and related industrial environments, with continuous monitoring of R290 refrigerant concentration. It can be linked with ventilation, alarm, and safety control systems to detect leak risks in time, reduce hazards caused by combustible gas accumulation, and protect personnel, equipment, and production environments.

Cold Chain and Refrigeration Leak Detection

Cold Chain and Refrigeration Leak Detection

Suitable for cold storage, refrigerated cabinets, ice makers, heat pump units, and commercial refrigeration equipment, with real-time monitoring of R290 refrigerant leakage. Its rapid response mechanism triggers early warning and linked actions, helping maintenance teams identify faults earlier, reduce downtime risk, and improve the safety and stability of refrigeration system operation.

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