Check the listing for details. Elitech Dual Sensor Infrared&Heated Diode HVAC Refrigerant Leak Detector IR-200. Condition: New. Listed at 239.99 USD. Detection Gases HFCs, HCFCs, CFCs, PFCs, HFOs, HCs Alarm Mode Audible and visual alarm; TFT indication Auto OFF After 10 minutes of inactivity Working Hours 8h continuous use on a single charge Operating Environment Temperature: -10°C~ 52°C; Humidity: ≤ 90%RH (non-condensing) Dimensions 201 x 72 x 35mm(7.9”x2.8” x1.4”) Weight 450g (1 lb) Charging Voltage/Current DC 5V，1A Charging Time Approx 4h Battery 2 x 18650 lithium battery Package included 1 x Leak Detector, 1 x UV LED, 1 x User Manual, 1 x Plastic Case, 1 x Adapter, 1 x Charging Cable, 5 x Replacement Filter, 1 x Replacement Probe IR-200 Inframate C ILD-200 Sensor Type Infrared & Heated Diode Infrared Infrared Sensor Life ≥10 years/2 years ≥ 40000 hours ≥10 years Probe Length 10 inch*2 (an extended probe) 10 inch 15.5 inch HFCs HCFCs CFCs PFCs HFOs HCs R744