Fotric TD2 acoustic imaging camera - see sound, spot leaks faster - detects sound from 20Hz–20kHzFotric TD2 acoustic imaging camera see sound, spot leaks faster detects sound from 20Hz20kHz Beyond what's audible: The Fotric TD2 acoustic imaging camera can detect not only audible sound (20Hz20kHz), but also high frequency ultrasonic signals that are beyond the range of human hearing This means it can easily capture things like Compressed air system leaks: As gas leaks emit high frequency turbulence noise, the TD2 can quickly detect even the