• Adopts self-designed MASK chip with DMT technology • Anti-interference of insect and dust with spherical lens and sealed optics design • Digital pulse count is adjustable, Auto temperature compensation and energy analysis. • Advanced pet-immunity recognition technology can tell the difference between the an intruder and a pet. • Stable performance with tamper supervised, low-voltage check and status report function • High sensitivity, accurate detection, fine workmanship and low false alarm. • Low power consumption, built-in big capacity batteries, special low-power mode, ultra-long working hours.