["Description:\n\nFeatures:\nbrand new and high quality\nUses a vibration detection system that consists of a bell and a contact spring.\nCharacterized by high sensitivity, speed and high performance.\nIt is widely used in car anti-theft and other security products. \nThe internal piezoelectric ceramic sheet and the spring weight structure are used to detect the vibration signal.\nThe amplifier signal is amplified by the lm358 and output control signals.\nLow cost, high sensitivity, stable and reliable operation, large adjustable range of vibration detection. \nIn the anti-theft system for steam for cars and motorcycles, 80% of vehicle alarms use these sensors. \nThe sensor uses smt chip technology inside, and the imported components are assembled. \nCan also be combined with a single chip microcomputer, wireless transmitter module, wired alarm, etc.\nIt is used in combination and has a wide range of uses.\n\nLeading wire description:\n1. the blue line is the signal output by the 358 op amplifier. If the signal is not vibrated, it is high (the io port must be pulled up), and if the signal is vibrated, it is low (signal to earth) .\n2. red line power: + 12 v\n3. the black line is the earth line\n\nNotice:\nIf the output is connected at the high level, it needs to add a resistor of 100 ohms or less. If you want to drive the wireless transmitter module, you cannot replace the resistor. The red and black wires are connected to the positive and negative power input of the module. The number (alarm horn for dc) is preferably an external relay control to avoid major current damage to the internal components of the sensor (for reference).\n\nSpecification:\nColor: Black\nPlug type: XH2.54-3P\nOutput current: ≤100mA\nSensitivity: -105dB\nQuiescent current: ≤6mA\nRated working voltage: 12V\nMinimum operating voltage: ＞5V\nMaterial: ABS+Electronics\nSize: app. 59x40mm(2.32x1.57in)\nTrigger electrode number: unipolar trigger output\nInterface mode: XH2.54 or 2510 three-wire interfaces\nTrigger mode: negative ground trigger or 12V positive trigger\nOperating voltage: DC10V-16V\nSensitivity: torsion can be debugged\nIndication mode: LED red light indication\nQuantity: 1 pc\n\nNote:\nTransition: 1cm=10mm=0.39inch\nNo retail package.\nPlease allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 x Anti-Theft Device with Cable(other accessories demo in the picture is not included.)"]