Check the listing for details. RIXOS O2 sensor replacement for RRR Unit Neutronics Identifier. Condition: New. Listed at 495.00 USD. Want to save some money? We offer our own direct replacement, tested and guaranteed to work as good as OEM for a fraction of the price, also with free next day shipping! Check it out here! https://www.ebay.com/itm/126505320708 For CPS FX Series and some other brands and models, part number RIXOS. New replacement O2 sensor for Neutronics integrated RRR Identifier, purchased direct from manufacturer, packaging may vary. This is a replacement Refrigerant Identifier YF Air Sensor made by Neutronics/Bacharach. P/N:1-16-1013-00-2. This fits identifier models used in Refrigerant Recovery Units made by Robinair, CPS (CPS P/N RIXOS) and more Includes the following Neutronics/Bacharach identifier models:Internal Automotive Analyzers EID-1234yf-SAE (P/N 7-08-1234-02-2)Internal Automotive Analyzers EID-1234yf/134a-SAE (P/N 7-08-1234-26-1) Internal Automotive Analyzers EID-134a (P/N 7-08-1000-70-0) Please contact us if you have questions about unit compatibility