Blocking: the traditional infrared radiation, leak, such as cable or microwave system, only with alarm function, without blocking. Intruders tend to cross the line without any block. 

Security: electronic pulse fencing system pulse voltage up to 6000-10000V, but the pulse repetition frequency is very low, only 1 time per second. Pulse duration less than 0.1 seconds. Pulse maximum energy 5 joules and pulse maximum power 2.5 NG coron. Thus, its energy is very small, harmless, and only give the invaders more unpleasant warning, shake its ability to climb fences and motivation, and achieve the purpose of the security barrier.