•Detection sensitivity: Diameter 2.5mm Ball
•Power supply: 9 V battery (6F22ND)
•Power consumption: 270mW
•Operating frequency: 22KHz
•The working current: less than 50mA
•The working temperature: -5 -55
•Type: metal detector
•Operating power: 9 V
•Alarm mode: sound /LED light / vibration
•Measurement range: 0-10
•Probe metal: pin
•Application: security inspection, public occasion