Features 10 sensitivity ranges, LED display, automatic calibration, low battery indicator, 18" flexible probe. Includes: ear phones, case, extra sensor and 4 AA batteries.Features:Variable Sensitivity: The only portable refrigerant leak detector with 10 different sensitivity ranges for effectively locating all refrigerants, large or small. At the lowest sensitivity setting, the LS790a can detect an HFC-134a leak as small as 1/2oz. (15grams) per year. At the highest sensitivity setting, the unit can detect an HFC-134a leak as small as 1/4oz. (10grams) per year. Clear: Clears the memory in the microcomputer and recalibrates to ambient. Lock-Out™: Selects Lock-Out™ mode; measuring and recording the highest level detected by the Ion-Pump™. The alarm sounds a two-tone signal and the visual display flashes when the recorded high has been detected, "locking out" all background contamination. Alarm Select: Selects audible alarm, visual indicator, or both. Visual Indicator: 10 position moving LED display indicates varying halogen concentrations. As the concentration increases, the LED moves left to right. In the Lock-OutT mode of operation, the LED's flash only at the leak source. Low Battery Indicator: The low battery LED constantly illuminates at half brightness when batteries are low. 18" Flexible Probe: The metal cable probe easily twists and turns into otherwise inaccessible areas. You're in and out in less time, with no coiled cord to tangle. Power Saver: Automatically switches power off after 15 minutes of use. Extends battery life. Super-Sensitive Ion Pump™: No moving parts, valves or fans. Provides an extremely precise flow of air through the sensor chamber. The only field replaceable Ion-pump sensor in the industry.CPS Products LS790B R-12 & R-134a Deluxe Leak Seeker® Detector
From the Manufacturer
CPS Products Electronic Refrigerant Leak Detector is designed to ensure efficient leak detection. It features a patented Ion-Pump sensor with built-in selective filter housing and includes a high intensity bar graph display.