Features: 1.Clear sound quality, high sensitivity, can quickly locate the abnormal sound of engine 2.Detect anomalies by tracking the sound of water, oil and steam flowing 3.Simple and efficient, can be used to monitor engines, bearings, motors, chassis, gearboxes, etc 4.Suitable for all kinds of mechanical equipment such as automobiles, ships, airplanes, machine tools 5.Equipped with 215mm extended probe, easy to operate Specification: Features: 1. Clear sound quality, high sensitivity, can quickly locate the abnormal sound of engine. 2. Detect anomalies by tracking the sound of water, oil and steam flowing. 3. Simple and efficient, can be used to monitor engines, bearings, motors, chassis, gearboxes, etc. 4. Suitable for all kinds of mechanical equipment such as automobiles, ships, airplanes, machine tools. 5. Equipped with 215mm extended probe, easy to operate. Specification: Item Type: Cylinder Stethoscope Material: Stainless Steel Tube Color: As Pictures Show Frequency Range: 10HZ-10KHZ Probe Length: Approx. 90mm / 3.5inch Extended Probe Length: Approx. 215mm / 8.5inch Hose Length: Approx. 280mm / 11.0inch Package Weight: Approx. 123g Package List: 1 * Cylinder Stethoscope 1 * Extended Probe PackageList: