LEAK-SEEKER II Refrigerant Leak DetectorCPS Products proudly introduces the all new Leak-Seeker II featuring E_MOS technology. Packed with unique design features the new Leak-Seeker II from CPS is the best leak detector you can find, anywhere in the world at any price, truly an Innovation in Design. Microprocessor controlled sensor electronics utilizing a multi channel signal detection method, improves sensitivity while reducing false alarm New E_MOS sensor technology incorporates a proprietary pulse modulation design to increase both battery and sensor life Software managed sensor rejuvenation mode, automatically initiated at each start up ensures the highest level of sensitivity every use, for up to 500 hours of detecting leaks of less than .1 oz. per year Sensitivity remains constant over the life of the sensor Dynamic signal analysis and automatic sensitivity control, enables the Leak-Seeker II to make quick work of any leak regardless of its size or the refrigerant typeGǪwithout operator intervention The only leak detector with fully automatic sensitivity selection and control Sensitivity to 35 parts per million (less than .01 oz. per year) Made In USA