Electrical test equipment rental will let you check the device and its working before you purchase the unit. PowerXplorer PX5 makes use of high speed digital sampling, and captures and tests microsecond wide transients. These transients are generated by fast switched electronics, capacitor switching, medical diagnostic devices, transformer energization, lightning, and load shifting. They are characterized as oscillatory or impulsive, and are further tested for more information. PowerXplorer is able to capture the entire spectrum of power quality, and provides a high quality display of the transient.