Shenzhen Joint Technology Co., Ltd. Was established in 2006, and became a holding subsidiary of the listed company Keli Sensing Technology (Ningbo) Co., Ltd (603662) in March 2022.

DRAGON GUARD has focused on the design and manufacture of security products and solutions for over 19 years. Combined with hardware and software equipments, we are able to provide different types of retail security products and solutions for global users. Our products are widely used in projects of government, bank, school, hospital and all kinds off security areas. Nowadays, our products have covered a wide range include EAS, RFID, ESL, Display Security, Security Camera, etc.

We manufacture, research and develop and sell:

Guangdong Meizhongkai Security Technology Co., Ltd. - Your Trusted Partner in Security Solutions

Zhongshan Nengtong Burglarproof Electronics Co., Ltd., originally known as Zhongshan Nengtong Electronic Factory, is a modern high-tech enterprise integrating R&D, manufacturing and sale of burglarproof electronic products. Founded in 2004, after years of effort, our company has been recognized by both domestic and overseas markets with excellent product quality, leading technology and quality service. Since the foundation, Nengtong Electronic, integrating advanced production equipment and scientific production management with self technology advantage, has gathered a group of elites in project R&D, production management and sales service in the industry to manufacture high quality and high standard products. Introducing latest production equipment from Germany and Japan, integrating human management and corporate culture philosophy, our company has built the first class enterprise with R&D, large production, brand and service strategic advantages. Integrating manufacturing, sales and service of automobile, motorbike and household burglarproof device, adhering to philosophy of "technology is drive of products, service is source of market", Nengtong Electronic puts customers' service at the first place and provides 24h after-sale service for customers.

Satech digital is a hi-tech company engaged in the filed of satellite products and digital elctronics. Satech manufactures and deal in DVB-S satellite receiver, DVB-C set top box, DVB-T set top box, GPS monitoring system, GPS antenna, GPS tracking system, GPS positioner and GPS+GSM car security products as well as digital electronics products.

Guangzhou Topshine Electronic Technology Co., Ltd. is a China leader manufacturer of superior Global Positioning System (GPS) tracking solutions and innovative integrated wireless communication equipments.

Nanjing satech Electronics Technology Co., Ltd. is a hi-tech company engaged in the filed of satellite products and elctronics. Satech manufactures and deal in DVB-S satellite receiver, DVB-C set top box, DVB-T set top box, GPS monitoring system, GPS antenna, GPS tracking system, GPS positioner and GPS+GSM car security products.