MD-3003B1 Hand Held Security Metal Detector Portable Durable Self-Checking
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MD 3003B1 Hand Held Security Metal Detector Portable Durable Self-Checking
Features
When battery voltage drop from 9 to 7V, detecting distance remain unchanged Energy smart: can work 40 hours continuously Except the light alarm, audible alarm and the vibratory alarm can be chosen When the battery nearly dies, audible alarm or vibratory alarm should be a warning
Specifications
Applications
Security check: avoid carrying contraband, such as knives, guns and more Factory: avoid valuables losing Education: avoid cheating, prevent from carrying cheating tools, such as phones, electronic Dictionary and more when examine
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