Check the listing for details. LEAK SEEKER LS780B. Electronic Refrigerant Leak Detector CPS. Condition: New. Listed at 199.99 USD. New in Box Unique detection circuit design & patented Ion-Pump sensor technology combine to create an accurate field reliable refrigerant leak detector that is easy to use. A rugged, three position slide switch is used to turn the instrument ON & select either LO or HI sensitivity ranges. Visual indication of the leak size is provided by a high intensity LED varying in brightness with the concentration of the refrigerant detected. Product Features New improved power and filter circuitryPatented Ion-Pump sensor with built-in selective filter housing18” flex probe & exclusive Ion-pump®sensor0.25oz/yr (7g/yr) leak rate of HFC SensitivityLow Battery Indicator TECHNICAL SPECIFICATIONS SENSOR TYPE Patented Ion-Pump sensor with built-in selective filter housing SENSITIVITY 0.25oz/yr (7g/yr) leak rate of HFC. AUDIBLE ALARMS Wide range audible alarm VISUAL DISPLAY High intensity LED display FLEX PROBE 18"/45cm long metal cable probe OPERATING TEMP 0 to 140°F / -18 to 60°C POWER 40 hours battery life 4 "AA" alkaline batteries. Auto OFF after 15 minutes of inactivity. LOW BATTERY INDICATOR No illumination of LED indicates low battery