The function of the intrusion detector is to detect motion in the protected area. Thanks to the option of ignoring animals, the MPD-300 can provide protection even in the event of the presence of small animals, such as small dogs, within the protected area. The lithium battery that powers the detector guarantees a long operating time without the need to replace it, so that the operation of the system, as in the case of wired solutions, does not cause additional worries.