Taizhou sub core Microelectronics Technology Co., Ltd. is located in the Chinese historical and cultural city of Taizhou City, located in the north shore of the Yangtze River, the Yangtze River Delta north wing, is one of the central city of Shanghai city circle. Ltd is industrial timer, intelligent controller, optical fiber sensor, temperature and humidity switch, electronic timer, buzzer, alarm and other products specializing in the production, processing and sales of integrated companies, has a complete and scientific quality management system. Taizhou sub core Microelectronics Technology Co., Ltd. integrity, strength and quality of the industry's highly recognized. All employees of our company adhering to the "honesty, quality first, customer first" service concept, to provide customers with excellent products and perfect service. Welcome friends from all walks of life to visit the guidance and business negotiation. Type Unit YXWZX-12 YXWZX-36 YXWZX-46 Rated Voltage V 12 36 48 Operating Voltage V 8-15 20-40 38-50 *Rated Current(MAX) mA 57 52 138 *Min Sound Output dB 85 88 88 at 30 cm *Resonant Frequency HZ 2500±500 2300±500 2500±500 Operating Temperature ? -20~+80 Weight g 14