Inficon HLD5000 Refrigerant Sniffer Leak DetectorThe HLD5000 finds leaks quickly and easily with greatly reduced false alarms making it the new standard for halogen leak detectors. Designed to detect all halogenbased refrigerants as well as SF6 or CO2, the HLD5000 combines a long life IR sensor with a unique dual inlet sampling system to effectively cancel any background contaminants that can lead to false alarms.