Electronic Mechanic Stethoscope Tool Kit – Engine Noise & Leak Detector, Dual Pr
The brighter the bar, the clearer the fault, with a peak hold for half a second to let your eyes confirm what your ears hear. Our professional tool uses a solid-state piezoelectric sensor with zero moving parts and a tuned amplifier featuring a wide frequency response (20Hz - 20KHz) that isolates and amplifies only the fault frequency.