This Noise Master is specially designed to detect the unwanted noises of the vehicle such as mechanical or structural generated noises. It is equipped with 4 different types of probing sensors: suction cup sensors for glass or glossy surfaces, magnetic sensors for steel surfaces, clip-on sensors for round surfaces such as tie rods, fasteners, etc., and hand held probes for probing hard to reach locations.
The Automotive Stethoscope Model EM410 is designed to detect unwanted or unusual mechanical noises from the bearings, shafts, tappets, etc. It is operated by 9 Volts battery. The loudness can be controlled by adjusting the volume control.