Shanghai Dragon Fire Equipment Co., Ltd. is located in Minhang District, Shanghai Qixin No. 488, is a professional wholesale all kinds of fire equipment and service in one integrated company, the company registered capital of 8.8 million yuan, has all kinds of technical staff of more than 800 people . We always adhere to the "integrity of mind, quality-oriented" approach, strict implementation of quality fire protection products, in an efficient quick response, the pursuit of excellence, consistent with protection of community fire safety, responsibility and dedication to providing quality services to our customers . Our main products are: fire hydrant, fire pumps, pump adapter, sprinklers, alarm valves, flow meters, various types of fire extinguishers, fire me, fire cannons, fire hose, fire reel, grooved fittings, warm feeling, smoke sense of alarm systems, emergency lights, fire signs, valves. Company service hotline: 400-920-6119. Company Website: http: //www.tloong.cn/. Welcome to the new and old customers to inquire! Manual alarm button: Manual fire alarm system alarm button is a device type, when officers found a fire in the fire detector does not detect the fire, when the manual alarm button presses manual, report a fire signal. Under normal circumstances, when the manual alarm button alarm, the probability of fires is much greater than the fire detectors, almost no false positives are possible. Since starting the alarm button manual alarm condition must manually press the button to start. Press the manual fire alarm button when over 3-5 seconds, manual alarm button on the confirmation will be illuminated, this light indicates the status of the fire alarm control fire signal has been received and confirmed the site location. Alarm button alarm button