​​​​Specification:Model:MD3003B1Power supply:9v standard or rechargeable batteryDetection sensitivity:diameter 2.0mm steel ballPower consumption:270mWOperating frequency:22KHz Static current:less than 7mAWorking current:less than 50mAVibration current:103mAWorking temperature:-5℃-55℃Size:410x85x45mmAlarm mode:acousto-optic synchronous alarm or vibration alarm Main Features:Designed to meet the exact requirements of the security industryEasy to operate,equipped with leather,for carrying Has light and sound vibration alarm prompted the dual modeAdjustable sensitivity hole with concealed moisture-proof,less trouble,economical and durableFirst use of automatic reset switch to switch the sensitivity function,thereby achieving that is capable of detecting large,but also can detect small metal objects Note:Please allow 1-3cm differs due to manual measurementPlease allow color may vary slightly due to color calibration of each individual monitorPackage Included:1xMetal pin pointer(battery not included)1xLeather belt mounted pouch1xInstruction manualNO Retail Box.Packed Safely in Bubble Bag.