Features:_x000D_1. Clear sound quality, high sensitivity, can quickly locate the abnormal sound of engine._x000D_2. Detect anomalies by tracking the sound of water, oil and steam flowing._x000D_3. Simple and efficient, can be used to monitor engines, bearings, motors, chassis, gearboxes, etc._x000D_4. Suitable for all kinds of mechanical equipment such as automobiles, ships, airplanes, machine tools._x000D_5. Equipped with 215mm extended probe, easy to operate._x000D__x000D_Specification:_x000D_Item Type: Cylinder Stethoscope_x000D_Material: Stainless Steel Tube_x000D_Color: As Pictures Show_x000D_Frequency Range: 10HZ-10KHZ_x000D_Probe Length: Approx. 90mm / 3.5inch_x000D_Extended Probe Length: Approx. 215mm / 8.5inch_x000D_Hose Length: Approx. 280mm / 11.0inch_x000D_Package Weight: Approx. 123g_x000D__x000D_Package List:_x000D_1 * Cylinder Stethoscope_x000D_1 * Extended Probe 1Clear sound quality, high sensitivity, can quickly locate the abnormal sound of engine 2Detect anomalies by tracking the sound of water, oil and steam flowing 3Simple and efficient, can be used to monitor engines, bearings, motors, chassis, gearboxes, etc 4Suitable for all kinds of mechanical equipment such as automobiles, ships, airplanes, machine tools 5Equipped with 215mm extended probe, easy to operate