Hand held metal detector Central (good quality and

High sensitivityHand-held metal detectorCT-900 (with theearphone & charger jack) Product features: 1: Red LED display: Press when the light-emitting instructions; 2: drop-min button: when pressed, enables the detection of metal detector sensitivity by about 50%. Therefore, may contain a large number of steel bars Floor near the detection, or used only to detect large metal objects. 3: the headphone jack: the results in the detection of a user,you only need to know the circumstances that can be used to insert the headphone jack placement.Technical specifications: Sensitivity: Φ2.0mm Ball Power Supply: 9 volt battery (6F22ND) Operating frequency: 13KHz Power consumption: 270mW Current job: less than 60mANet Weight: 400g Size: 410 * 80 * 40mm Packing Size: 520 * 330 * 460mm (30 support / box Multi-types of handheld metal detector etc...