United even intelligent smoke alarm "integrity, innovation and excellence," the entrepreneurial spirit to guide us to professional service with you to create a low-carbon, energy saving, environmental protection, intelligent home life together leading home intelligent quality new way of life . ?? First, the technical parameters: Power supply: 12VDC: (User can customize + 24V or other forms such as power supply) Current: Static current less than 10uA, between the alarm operating current 10-3mA; Output Type:? Dry contact alert output open circuit, short circuit alarm output impedance less than 50 ohms; smoke sensitivity:? comply with the UL 217 standard; factory tested prospective value of 3.2% per foot slightly Misty, sensor response; work environment:? -5 ℃ -50 ℃, 10-90% non-condensing; buzzer sound level intensity:? 10 feet to 85 dB. Second, the characteristics of the power supply: 9V alkaline battery or carbon battery Working current: static energy current of less than 10uA, working between the current 20-5mA smoke sensitivity: comply with UL 217 standard operating temperature of: 40 ° F-120 ° F ( 4 ℃ -50 ℃) gas interface temperature: 10% -90% buzzer sound volume level: 10 feet to 85 dB Battery life: at least three years, outlining trigger 1. hazardous chemicals warehouse reaches a certain concentration of combustible gas alarm; 2. warehouse triggered smoke alarm; 2. wireless transmission mode, using a dedicated wireless transmission and receiving technology; anti-interference ability. 3. Subregional prompted alarm; 4. The alarm will notify the Administration by the host (or the designated control room); 5. By communications equipment alerts (optional) 6. window opens automatically. Automatically cut off the gas valve 7, using high sensitivity gas, smoke detectors with our professional wireless technology to achieve pure wireless technology solutions, saving a lot of wiring costs; at the same time facilitate the future system maintenance. 8, conventional gas, smoke alarms are separate entities work; our system is a separate unit via a wireless alarm system host together; greatly facilitate the business units of the unified management control area. Contact: Mr. Luo Tel: 18926049293 E-mail: dongzhou_luo@163.com Company Address: Bao'an District of Shenzhen City streets Liyuan Kai Hui Mao Industrial Park Road, Building D, 3rd Floor Company Website: http://www.l-unicom.com