CPS Products LS790B Leak-Seeker Refrigerant Leak Detector The LS790B Leak-Seeker combines the most advanced microcomputer circuitry with field-proven Ion-pump sensor technology creating a highly sensitive, accurate electronic refrigerant leak detector. Over 100 computer-generated tones and a high-intensity bar graph display quickly alerts the user to varying halogen concentrations. Patented automatic calibration design eliminates the need for manual balance or tick rate adjustments while the user-selectable 10 sensitivity ranges enable the LS790B Leak-Seeker to detect all non-combustible CFC, HCFC, HFC gases and blends. Features Individually calibrated to detect a leak rate of better than 0.25 oz per Year of HFC Patented Ion-Pump sensor technology proven effective in detecting all refrigerant types Patented water vapor filter provides greater stability under high humidity condition Patented automatic calibration circuit ensures optimal performance at all times Specifications Item: Leak Detector, Electronic Used On Item: Refrigerant Probe Type: Flexible Probe Size: 18 Inch Length Battery Life: 40 Hour Battery Type: (4) AA Alkaline Temperature Rating: 0 to 140 Deg F Manufacturer: CPS Products Part Number: ‎LS-790B Item Weight: ‎3.2 ounces Item model number: ‎LS790B Batteries: 4 AA batteries required. (included) Style: Simple Power Source: ‎Corded Electric Item Package Quantity: ‎1 National Stock Number: ‎6665-01-480-0912