With the rapid development of China's economy, electric bicycles gradually into people's lives, and become one of the main means of urban and rural transport, but the electric bicycle stolen has occurred frequently, and now the market has a wide range of electric car burglar alarm Device sales, some high-end intelligent alarm due to the price is too high or there are affordable, reliable and reliable anti-theft alarm for sale, but the alarm alarm speakers are generally only installed in the electric car body, and the completion of police intelligence transmission task The main components are vibration sensors, the sensitivity is high, resulting in a number of external environmental factors, such as wind and thunder, children frolic, etc., are likely to make the action, and trigger the alarm alarm, this false alarm caused by noise pollution Often caused by unnecessary nuisance users do not want to price only two or three thousand electric cars to configure, and not promotion. All the reasons that most of the electric car users did not for their car to be equipped with anti-theft alarm device, resulting in some lawless elements can take advantage of the growing theft of electric cars, thus, a low price, high quality, suitable for Ordinary users of the burglar alarm will be the electric bicycle market eagerly hope.