Features1Sensitivity is easy to detect a metal object of size (or even smaller). Sensitivity can be adjusted according to site requirements. 2Simple operation, exquisite design, easy storage and low failure rate. 3Handheld and light weight,easy to use. There is a battery undervoltage indication (the LED light is always on). 4The alarm mode has two alarms: sound and light, vibration, high sensitivity. 5It can be used for public security in airports, railway stations, docks, customs and frontier defense as well as quality control of medicine, food and other commodities.SpecificationCondition: 100% Brand NewItem Type: Metal DetectorMaterial: PPColor: As shown in the pictureUnfold Length: Approx.40cm/15.7inApplication: Handheld folding metal detectorDetection Sensitivity: 2.5mm/0.1in steel ballAlarm Mode: Sound and light synchronous alarmBattery: 9V 6F22ND battery (Not included)Power Consumption: 220mWWorking Current: Less than 5mA-8mAWorking Temperature: -10- +50Weight: Approx.233g/8.2ozPackage List1 x Metal Detector(Battery Not Included) 1 x Instruction Manual