Fire prevention Smoke Detector Safety Kit Fire Alarm Smoke Sensor Product Description This product is photoelectric type, and works on the principle that infrared scatters in the smoke to probe the smoke which is generated by both the incomplete combustion and combustion at the initial stage of the fire. The detecting chamber adopts special structure design and signal processing identification technology. It fits for indoor enviroment such as family use and public place. Features: With MUTE function EN-14604 applied Technical parameter: Power Source: DC9V Quiescent current: ≤ 10uA Alarm current: ≤ 20mA Alarm decibel: ≥ 85dB/3m Indicator: LED(red) Low battery alert: ≤ 7.3V Work Temperature: -10º C~+40º C Environment humidity: ≤ 95%RH Alarm type: Sound/light Detailed Photos View more products,click here... Company Profile Ningbo Kingdun Electronic Industry CO., Ltd., as national Hi-tech Enterprise, is a large-scale enterprise specializing in producing of various kinds of safety alarms. Established in 2000, we already have a wide range of experience in product design, certification and manufacture of different kind of alarms as well as the other electronic products.Our main products include different kinds of smoke alarms,carbon moxide alarms,gas alarms,water alarms, intelligent wireless alarm system, and other home electronics.Our factory covers 13,000 square meters, with 35,000 square meters for Construction area.We have 8 SMT lines and 4 automatic through-hole production lines, 8 final packing line and two automated plastic injection room. All our smoke alarm and other alarms are 100% calibrated and controlled under our efficient ISO-9001 quality system.Our factory have also been certified with BSCI , ISO 14001 , OHSAS 18001 standard for the environment protection and social responsibility.Our prduct have been certified as EN 14604, EN 50291, VDS, NF,LPCB certifications, and we have UL and ETL in processing as well.Our market is mainly located in Europe and USA. We have been working on these market for over 10 years and we have a good reputation among our customers who are also well known whole sellers and distributors in security area.Our main objective is to develop and innovate more safety products for our customers. Together with KingDun ,you can bring a more safety home to the end users in your market. And we are always ready to offer our best service . For more information,please contact us directly with your questions or inquiries.