Car AC Oil Checker Refrigeration Oil Testing Instrument

Keep your car’s cooling system in peak condition with the Car AC Oil Checker Refrigeration Oil Testing Instrument, a simple yet effective tool for detecting AC oil quality. Compatible with R134a and R1234yf refrigerant systems, it works with most vehicles to help you measure the oil layer quickly and accurately.

This oil checker is designed for easy, non-invasive testing, allowing you to perform inspections without draining the entire system—saving both time and materials. A cost-effective solution for maintaining your car’s air conditioning system, it ensures the oil layer stays within the normal range for optimal performance. Whether you’re a professional mechanic or a car owner who wants to avoid expensive repairs, this tool makes AC maintenance smarter, safer, and more reliable.