Function: Traditional corona sensors respond to a broad class of halogenated compounds, enabling leak detection across many refrigerants. Coverage: Sensitive to CFCs, HCFCs, and HFCs including examples such as CFCs (R12, R11, R500, R503), HCFCs (R22, R123, R124, R502), and HFCs (R134A, R404A, R125, R1234YF) plus other halogenated refrigerants. Benefits: Provides broad halogenated-signal detection in a single sensor, reducing hardware and calibration needs. Supports safety, environmental compliance, and faster response. Performance: Reliable detection with quick response to leaks, stable baseline, and consistent sensitivity across a range of halogenated compounds. Compatibility: Designed to integrate with standard leak-detection systems and common refrigerant handling equipment; compatible with typical connectors and wiring. Size and material: Compact form factor with a robust, corrosion resistant housing suitable for HVAC and refrigeration environments. Use scenarios: - HVAC service and retrofit: locate leaks in systems using R134A, R22, or R404A. - Industrial refrigeration: monitor large facilities for halogenated refrigerants. - Compliance testing: rapid screening during regulatory inspections. Note: Not selective to a single gas; best used when broad halogenated detection is needed to guide maintenance decisions.