Description:Our automatic stethoscope can quickly locate and identify the fault of the engine and other moving parts.Suitable for identify broken gaskets, bad pulleys, damaged gears, defective valves, water pump failures, and other defective or damaged parts that cause odd noises and faulty operation.Specification:Weight: 140gSize: 35*8*2 cm / 13.7*3.1*0.8 inPacking List:2*Probe Needle1*Stethoscope