Check the listing for details. Neutronics/Bacharach Replacement O2 Sensor. 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 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