Water Pipe Leak Detector Engine Motor Abnormal Sound Noise Electronic Stethoscope Condition: New Color: Black & Silver Material: Metal & Plastic Stethoscope size: approx. 20.6 x 5 x 3.2 cm (8.1 x 2 x 1.3 inch) (L x W x D) Probe length: approx. 29 cm and 7 cm (11.4 and 2.8 inch) Earphone line length: approx. 170 cm (66.9 inch) Frequency Range: 100 Hz - 10 kHz Input Impedance: more than 15 Mohm Ambient Noise Permitted: 100 dB Working Temperature: -10°C to 55°C Power Supply: 9V (6F22) battery Weight: about 240g (long probe & main part) Item included: 1 x Electronic Stethoscope (Battery not included) 2 x EM410 High Sensitive Probe (short & long) 1 x Earphone 1 x PU Leather Bag 1 x User Manual Suitable for detecting noise in machine components, measuring water tank tightness, checking pipes, leaks, etc. This is an aftermarket replacement item, not genuine. Note: 1) All dimensions are measured by hand; slight deviations may occur. 2) Battery is not included. 3) During detection, do not touch the probe with hands or skin. 4) Never apply the probe to any live electrical parts. 5) Never use the probe in dangerous situations that may cause personal injury.