1. Unparalleled Advantages: Pipe Locator Underground Has Sw720 or Sw730 Three Models, Wire Length They Are 20m or 30m, The Maximum Detection Distance Is 50cm, Can Help People Detect Pipeline Blocking. 2. Wireless Probe: Pipe Locator Underground It Accurately Locates Hidden Blockage, Clogging Inside The Pipe And Reminds You With A Buzzing Sound. The Probe Is And Can Work In Harsh Environments. 3. Battery: Pipe Blockage Detector Transmitter And Receiver BuiltIn 2000 Mah Rechargeable Lithium Battery, Full Power Working Time Is 10 Hours. Sufficient Power For LongTerm Use. 4. Scope Of Application: Wall Leaks Plumbing Diagnostic Tool Applies To Pvc Pipe, Cement Pipe, Plastic Pipe, Iron Pipe, Metal Pipe, Steel Pipe, Copper Pipe, Wide Range Of Applications, Can Meet The Needs Of Most People. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store