Instruct: Classify a review into positive or negative sentiment.
Query: Mechanics stethoscope

Most real mechanics have heard a troublesome noise coming from the engine of a vehicle. Is that noise the timing chain, a valve, the water pump? I have used this stethoscope and can actually hear every part spinning. Place it near the valve cover and you can here those lifters doing their job. Place it on the altenator and you can actually hear the parts inside moving. Noises on an engine are always hard to find because they sound like they are coming from the whole engine. This device pinpoints those noises and the location. This device is very sensitive to noise. A must for any mechanic.