Metal detector tenuto in mano di alta sensibilità con tecnologia GC-1001 di modulazione

High Sensitivity Hand Held Metal Detector With Modulation Technology GC-1001 Competitive Advantage: High sensitivity , can detect a staple Can Locking the metal position by the voice alarm Description: Features: Simple and convenient operation Low power consumption: zero consumption in standby state and below 1mA in working state High detecting speed: time span between last alarming and next detecting is 0.1 second High precision and sensitivity: capable of detecting tiny