... office etc Features:P-008A: Wireless Plug-in PIR sensor alarm/doorbell Exquisite outward appearance, unique ... -in microcomputer, adopts advanced digital and fuzzy logical control technology; Digital temperature compensation, anti-irradiation and anti- ... in chimeEasy to install and operateSuitable for homes, office buildings, stores, etc.Multifunction: antitheft, welcoming guest doorbell Electronic ...