Features and Benefits: * Heated Pentode sensor technology * Detects all CFC, HFC, HCFCs including R-12, R-22, R-123, R-134a, R-404a, R-407a, R-408a, and R-410a * Tri-color visual leak size indicator * Rechargeable batteries * Sensor failure indication Tactile keypad controls with one-touch reset and adjustable sensitivity. True mechanical pump provides instant response and clearing. Other features include: Battery test function, Sensor failure indication and Revolutionary design. TIFZXKIT includes: (1) ZX Refrigerant Leak Detector (2) Replacement Sensors (5) Replacement Filters (2) Battery Pack, Nickel Metal Hydride (NiMH) (1) Charging Base (1) Battery Charger (1) Cigarette Lighter Charger (12V) (1) Blow-molded carrying case (1) Owners Manual