Controllo ampiamente usato di sicurezza della batteria di indicazione del metal detector tenuto in mano eccellente basso dell'analizzatore

Low Battery Indication Super Scanner Handheld Metal Detector Widely Used Security Checking Product Introduction: MCD-3003B2 is a small handheld metal detector for security checking. It is easy to use, without any adjustment controller, fast response to detect metal objects, sound and LED light emitting alarm simultaneously. A clear low frequency tones sound can be heard when detect small metals, and high audio tone can be heard when detect large metal objects. Product