3in1 Multifunctional Detector Wall Metal Wood Cable Detector Digital Color Display USB Voice Broadcast ,Portable

- Up to 120mm Detection depth. - Working conditions: -10 ~50, Storage temperature:-20~70 - Built-in 3.7V lithium battery - Using metal detect function to find hidden metal pipe, rivet or fixture in the wall - This unit is an tool for DIY fans, professional electrician and user in decoration field.