Mechanical/Ding-Dong Doorbell,doorbell chime,PIR S

PIR Sensor Alarm/Doorbell:P-008/ P-008D/ P-008A Multifunction: antitheft, welcoming guest doorbell P-008Exquisite outward appearance, unique design Built-in microcomputer, adopts advanced digital and fuzzy logical control technology;Digital temperature compensation, anti-irradiation and anti-RFI; 3X1.5V AAA batteries(not included) for the alert, external transformer also works Easy to install and operate Suitable for homes, office buildings, stores, etc. Multifunction: antitheft, welcoming guest doorbell LED indicator in the alert Adopt advanced computer digital sounds techenology,voiced by true person, make the sounds more pleasant; suitable for different occasions and festivalsP-008AP-008A: Wireless Plug-in PIR sensor alarm/doorbell Exquisite outward appearance, unique design Built-in microcomputer, adopts advanced digital and fuzzy logical control technology;Digital temperature compensation, anti-irradiation and anti-RFI; 3X1.5V AAA batteries(not included) for the alert, external transformer also works Plug-in chime Easy to install and operate Suitable for homes, office buildings, stores, etc. Multifunction: antitheft, welcoming guest doorbell LED indicator in the alert Adopt advanced computer digital sounds techenology,voiced by true person, make the sounds more pleasant; suitable for different occasions and festivalsP-008DP-008D: Wireless Battery-operated PIR sensor alarm/doorbell Exquisite outward appearance, unique design Built-in microcomputer, adopts advanced digital and fuzzy logical control technology; Digital temperature compensation, anti-irradiation and anti-RFI; 3X1.5V AAA batteries(not included) for the alert, external transformer also works Chime, AA batteries (not indluded) Easy to install and operate Suitable for homes, office buildings, stores, etc. Multifunction: antitheft, welcoming guest doorbell LED indicator in the alert Adopt advanced computer digital sounds techenology,voiced by true person, make the sounds more pleasant; suitable for different occasions and festivals Mechanical/Ding-Dong Doorbell C-500MAINS VOLTAGE DING DONG DOOR CHIME Tenderness pure metal "DING DONG" sweet voice To use with 220V (or 110V optional) Built-in Overcurrent protection circuit to avoid misuse the chime unit by holding the push button pressed continuously., Use fireproofing materials to protect your life safetyC-700BATTERY OPERATED DING DONG DOOR CHIME For dry batteries only, easy installation Use 3 pcs of R14 "C"dry batteries Tenderness pure metal "DING DONG" sweet voice The lilfe of the batteries is one year if the product is used 10 times or less a day.C-700FWIRELESS BATTERY OPERATED DING DONG DOOR CHIME Easy wireless Installation Includes a bell push, powered by 23A/12V battery For dry batteries only Use 3 pcs of R14 "C"dry batteries Tenderness pure metal "DING DONG" sweet voice The lilfe of the batteries is one year if the product is used 10 times or less a day. Digital code system,long remote distance,but never interference with neighbours chimes Over 100m distance(Metal frames and walls will reduce the operating distance) Water-resistant transmitter can be mounted indoors or outdoors, four transmitters optional