TianJin Langrizhongtian Science Technology Development Co., Ltd.

Our company located in Huayuan Science Technology Industrial Park of Tianjin which is famous as the silicon valley of Tianjin. As a high-technical company we are specialized in safety protection field. We are developer, manufacturer, and seller of cellular phone jamming devices and surveillance equipment. We have designed several models for special uses, such as use for police or use in school, church and hospital. They are widely used in fields of telecommunication security, medical equipment protection, petrochemistry, safety protection etc.

Our research and development team have many experienced engineers and young talents. We cooperating with a number of domestic research institutes and universities through a variety of methods have laid a solid foundation for development of our company. We possess several self-owned intellectual property rights and our products are particular in China also unparalleled in the world.

Strict quality control - Our products have been accredited as being of the highest quality and the most trust-worthy in the industry. Our products also have been highly acclaimed by our customers and by our business partners in Asia, Europe, and North America.

A full line of products - We have a full line of cellular jamming products from low cost portable units to high spec industrial fixed units.

Competitive prices - We have been working very hard to improve our productivity while ensuring high quality. The prices of our various products are the most competitive on the market.

Timely customer service & technical support - The customer service representatives and technical support staff at our headquarters, manufacturing facilities, and all of our branch offices are always standing by to help our customers with all of their questions about our products or with possible problems they are having using our products.

You can partner with us by becoming our reseller. We will guarantee the quality of our various products so that you can be proud of what you provide your customers. We can also customize any related products to meet your specific needs. Since we would like to work with you on a long-term basis, we will always offer you the most competitive prices in the industry. Serious enquiries only need apply.