Fire Alarm & Smoke Detector, Alarm & Security Systems, Carbon Monoxide Alarm manufacturer / supplier in China, offering Australia Standard Interconnected Photoelectric Smoke Detector 10-Year Battery, Anka New Australia Standard As3786 Certified Hardwired Photoelectric Smoke Detector, En14604 & En50194 Certified AC Mains Interconnected Smoke and Co Combination Detector Alarm with Backup 10-Year Battery for Residential & Commercial Use and so on.