1.High sensitivity, easy to maintain 2.It can ... Needle DetectorDetection Method Magnetic field induction, digital circuitDetection Sensitivity FeΦ0.8mm-2.5mm(Standard Detection Height: ... to the ceiling fan, mobile phones, screwdrivers, etc) High sensitivity, when the detection height is 12CM, the detection iron ... perfersional exporter and importer for good products. High sensitivity Needle Detector