|* 4 frequencies for option; 2,4,6,8,12 beams for option;10，20， 40，& 60m detecting distance for option.
* Bi-directional mutual-transmission operation way to avoid sunshine interference.
* Hint of aiming status and 360? for horizontal rotation, convenient for installation.
* Adopts non-spherical lens to get more stable operation and longer distance.
* Intelligent pet-immunity technology.
* Fit for installation in terrace, windows, alley, warehouse, villa, military area etc.