ZKTOOL Automotive Electronic Mechanics Stethoscope EAR Diagnostic Device Kit EM410, with Short and Long Probe, Headphones, Engine Noise Finder Detector Tester, Frequency Range 20Hz~20KHz

Noise Detection Tool: This car engine noise detection tool is specifically designed and developed to detect abnormal noises from car engines, bodies, chassis, and other components. It can quickly and accurately locate engine faults, such as damaged bearings, clogged bushings, clogged fuel injectors, air leaks, valve noise, and abnormal filter noises. Precision Design: This car stethoscope comes with two probe lengths, allowing you to choose the appropriate size for the application and reach into narrow areas; the highly sensitive microphone and amplifier provide the full-frequency sound required by professionals. The vibration frequency response is approximately 20Hz-20kHz. Input impedance: >15MΩ. Allowable ambient noise: 100dB. Ambient temperature: -10°C~55°C. Instructions for Use: Step 1: Open the battery cover and connect a 9V battery (6F22) (Batteries are not included and must be purchased separately). Step 2: Select the appropriate probe (50mm/270mm) and connect it to the top of the product, tightening it securely. Step 3: Connect the headphones/earbuds. This product is also compatible with other 3.5mm plug headphones/earbuds. Step 4: Adjust the dial on the side of the product to turn on the power; the power indicator light will illuminate. Step 5: Press the top of the probe firmly into the vibration source being tested. Adjust the dial on the side of the product to select the appropriate volume to monitor the vibration source being tested. Signal Indicator Lights: Built-in LEDs display the amplitude intensity, facilitating quick identification of any machine malfunctions. This feature allows for early detection of machine problems. Service: ZKTOOL is committed to providing the best automotive repair tools. We offer 24-hour online support and a return/exchange policy for our products.