This project aims at a device which helps to control the illegal tree theft in reserved forests and other important areas where such acts are still prevalent and not desired. The use of this device, which is hammered on to a tree, will sense the sound of the tree-cutting along with a vibration sensor, and alarm the concerned forest personnel who have a hub nearby. The ultra low power processor can last up to decades without battery replacement. The signal processing study was done using FFT and the frequency of the cutting mechanism was checked on with band pass filters and the danger signal was sent.