Ningbo Sentek Electronics Co., Ltd. specializes in manufacturing magnetic contact reed switches as door and window contacts. After years of efforts, we have established long-term business relationships with customers from all over the world. Owing to our professional and excellent service, our products enjoy a good reputation in various markets. Developing rapidly, we currently supply more than 50 styles and 100 models. Hence, our monthly output reaches 300,000 pieces with annual sales of more than 3,500,000 pieces. Our company has become one of the largest magnetic contact manufacturers. To offer clients more related products, we produce photoelectric smoke detectors of conventional and stand-alone styles, complying with the UL, VDS, EN or BSI standards. With support from research institutions and academies, we will provide clients with high-security switches, proximity sensors, position sensors, and float switches. These products are widely used for security, electrical appliances and industrial control. Succeeding in first-rate customer service, our company will constantly strive for further development. We warmly welcome clients both in the domestic and the overseas markets for cooperation.