ZM-820 Rechargeable Pipeline Blocking Tester Wall PVC Iron Pipe Blockage Detector Pipeline Clogging Locating Instrument 220V
https://www.vogueparade.com/shopping/EN/142001/4/1005003312313620/zm-820-rechargeable-pipeline-blocking-tester-wall-pvc-iron-pipe-blockage-detector-pipeline-clogging-locating-instrument-220v//