https://refrigerantsensor.com/pa/product/zrt512j-refrigerant-detection-module/
ZRT512J Refrigerant Detection Module | NDIR Gas Sensor for R32, R454B, R290 | RS485 Communication -...
The ZRT512J refrigerant detection module is an advanced infrared gas sensor utilizing Non-Dispersive Infrared (NDIR) technology for detecting refrigerants such...