Copper Detector Rod Metal Rod Pendulum Pendant For Treasure Hunting Tools For Water Treasure Finding Tools Divining Copper ProbeSPECIFICATIONS Battery Included: No Brand Name: Keszoox Certification: None DIY Supplies: Electrical High concerned chemical: None Origin: Mainland China With LCD Screen Or Not: Yes Features: *Brand new and high quality *Made of high quality material, strong and durable *Working principle: Utilize the human body's magnetic field sensitivity to release subtle and delicate induction through the physical reaction of the rod, which becomes a visible