cheap Folding Hand-Held security whites Metal Detector-detect gold/jewelry

This cheap Hand-Held Metal Detector is portable, mainly for security. It is common use in important places like customs, airport and court. It can generate either an alarm or vibration mode The application of the security metal detector at the airport, railway stations, docks, prisons, customs, public security, border security departments, such as security checks, medicine, food, quality business systems; as well as the detection of precious metals (such as gold and silver jewelry factory)-just like a gold/jewelry metal detector, as well as important places such as Sports such as security checks.

• Detection sensitivity:70mm(1 yuan RMB detection range):120mm(the distance of Iron pipe to detect )
• Operation temperature:-10℃ to 50℃
• Current:less than 5mA
• Power supply:9V fold battery(6F22ND)
• Size:395mm(operation) 260mm(storage)
• Probe size:Ф134mm
• Weight:230g(Does not include battery)

Guideline: Loosen the screw of the battery door and install a 9V battery (Not Included). Hold the arm pole and change the three-position switch from "off" to "alarm". The green LED power light will be on and a short beep can be heard