Product name Hand-Held Metal Detector MD-3003B1 security scanner
 
Detailed Product Description

Super Hand-held Metal Detector

Features and specifications:

Power: 9V  500mA
Frequency: 22KHz
Operating Temperature: -5 to +55
The sensitivity is determined primarily by the size,shape of the goods

Maximum Detection Range:
38Caliber hand gun :20cm
Pen knife: 15cm
Razor blade:10cm

Meet the exact requirements of the security industry