Drumstone (𝐒𝐩𝐞𝐜𝐢𝐚𝐥 𝐃𝐞𝐚𝐥 𝟏𝟎 𝐘𝐞𝐚𝐫 𝐖𝐚𝐫𝐫𝐚𝐧𝐭𝐲) Security Alarm Lock System, Waterproof Black Anti-Theft Siren Alarm Anti potong Padlock for Universal Use

Features: Combines locking function with alarming function. Built-in movement triggered alarm, which can emit loud sound when the lock is hit or shaken. Adopts MCU core procedures, high-tech integrated circuit and digital sensor chip. Can be set to two states: mechanical lock and alarm. Low false alarm rate. Low power consumption. Can be used on door, window, bicycle, container, motor bike, tricycle, pull gate, garden, etc. Corrosion resistant, waterproof and durable to use. Powered by six button batteries. Supplied with three keys, convenient to use. Instructions: 1. Alarm mode: Install the battery; Open the lock and rotate the shackle by 180 degree and then press it, it will sound the Di ; Alarm mode is set successfully, in this mode, if an external force touches the lock body, the lock body emits a sharp and harsh alarm sound. 2. Normal mode: Turn the lock shackle back 180 degree again and press it, there is no Di sound; Normal mode is set successfully, No alarm will sound in this mode. Specifications: Color: black Material: zinc alloy Alarm decibel: 120dB Power supplied by: 6 * AG13 button batteries Lock size: 7 * 3.3 * 9.8cm Lock weight: 313g Package size: 17 * 13.5 * 4.2cm/ 6.7 * 5.3 * 1.6in Package weight: 374g Packing includes: 1 * Alarm lock 3 * Keys