Whisper is ideal for detecting and locating these sources of ultrasonic sound through the use of a specialized receiver which detects frequencies in the 40.5 kHz range. Through sophisticated circuitry, Whisper locates the ultrasound's source while an Internal Noise Control ensures the instrument is unaffected by audible noise, making it a versatile tool which can even be used in noisy environments such as mechanical rooms. You can also use Whisper with its optional ultrasonic transmitter to leak-check seals in enclosed spaces such as freezer cases or vehicles.
