UltraSound Detector is the App that allows you to detect ultrasound (ultrasonic) acoustic signals above the user-defined frequency (above 18 KHz by default). This detector can be useful in following cases: To check out the work-ability of various numbers of Ultrasonic electronic pest and insect repellent devices as well as any ultrasound emission devices if they work in the appropriate frequency range. To locate the leak detection in air condition and refrigeration systems. You are probably fa