GARRETT Handheld Metal Detector with Adjustable Sensitivity
It can be used for public security in airports railway stations docks prisons customs and frontier defense as well as quality control of medicine food and other commodities. - With very low power consumption this detector can work for over 40 hours continuously - Beep sound LED indicator when metal detected - Control: circulation switch (ON OFF) - Operating Frequency: 95KHz - Adjustable sensitivity - Operating power: 9V DC Battery (included) - Low battery alarm