Refrigerant Leak Detector, Heated Diode Sensor with Mechanical Pump, 2 Sensitivity Level, 0.25 oz/yr CFCs, HCFCs, HFCs and HFOs, For Use With CFC, HCFC, and HFC Refrigerants, Compatible with 2L Flammable Refrigerants, Voltage 2 D Alkaline Batteries, Includes Carrying Case, Sensor, Sensor Filter. This item has been restricted from sale in the following state (s): []