Overview[Wide Application] Detects leaks in construction sites, car maintenance, and pipelines with ease. [Rechargeable Device] Built-in battery for repeated use, long service life for reliability. [Sound Adjustment] Amplifies pipe sound for accurate detection, adjustable volume for convenience. [Dual Probe Design] Switch between probes for precise results on various surfaces. [ Material] Made of ABS and metal, wear-resistant and highly reliable. Spec: Item Type: Water Pipe Leakage Monitor Material: ABS, metal Uses: Suitable for construction site construction, automobile maintenance, etc. Current Consumption: 15mA Use Battery: Built in 500mAh lithium battery 3.7V Battery Type: None Probe Sensitivity: -70D db Maximum Audio Magnification: 20000X Penetration: Water pipe, cement pipe, steel pipe Answering Method: Headphones, can be connected to 16 ohm speakers (NOT included) Plug Voltage: AC100-240V Package List: 1 x Water Pipe Leakage Monitor 1 x Probe 1 1 x Probe 2 1 x Headphone 1 x Charging Cable 1 x Power Adapter 1 x Storage Bag 1 x Manual Note: Please according to the voltage used, using other voltages may cause fire and product damage!