Features and Benefits: * 50 hour battery life * 500 + hours of sensor life * 2 year warranty * Made in U.S.A. * Meets all USA and International standards for automotive use including the new SAE 2791 for R-134a and SAE2913 for HFO-1234yf The new CPSLDA1000 is the industries first fully automatic, extended life leak detector that utilizes the new E-MOS (Enhanced Metal Oxide Sensor Technology). Packed with many unique features the CPSLDA1000 is the best leak detector you can find anywhere in the world. The unit features Microprocessor controlled sensor electronics which utilize a multi channel signal detection method that improves sensitivity while reducing false alarms. New E-MOS (Enhanced Metal Oxide Sensor) technology use proprietary pulse modulation techniques to increase battery life and sensor life. Software managed sensor rejuvenation mode which is initiated at start-up insures the highest level of sensitivity for every use or for up to 500 hours of detecting leaks of less than .1 ounce per year.