NVSCenter500 User Manual is used to realize the centralized monitoring, storage, data forwarding, management and control of all network video surveillance devices (including network video servers, network cameras) in front end. This management software can manage up to 1728 front-end network monitoring devices at the same time; it can set and control any device, remote upgrade and other functions; support 1/4/9/16 /36 picture single screen display, as well as bidirectional voice intercom, electronic map, log query, alarm control, remote retrieval playback and other functions. Powerful, friendly interface, easy to operate, convenient for users to realize large-scale remote network monitoring system networking applications.

SGS210 GPS receiver is a single-frequency high-precision receiver for static measurement. Its antenna, OEM board, liquid crystal screen and collector contain chips from foreign famous manufacturers. It has stable performance, simple operation and convenient carrying. It is suitable for various construction units and measurement departments to do secondary and below-grade control measurement, line measurement, and also can be used for secondary and below-grade deformation monitoring.

BX1 series AC arc welding machine is a type of AC arc welding power supply suitable for welding low carbon steel and low alloy steel and other metal structures with a diameter of ~ Φ2.5 Φ8mm coated welding rods. The welding machine has the characteristics of compact structure, flexible movement, easy arc initiation, uniform welding current adjustment, wide adjustment range, convenient operation, good welding performance and easy maintenance.

BX3 series AC arc welding machine is independently developed and produced by our company. The welding machine has the advantages of simple structure, easy maintenance and repair, low price, light mobility, high efficiency and low working cost. The welding machine can adopt Φ2~Φ8mm coated welding rod, which is suitable for welding thicker steel structures with large current, and can also be used for electric cutting.

BX6 series alternating arc welding machine is suitable for welding medium and small welding parts, widely used in agricultural machinery and tools, station wharf, small factories and mines workshop production and maintenance, especially suitable for some components of high-rise buildings and automobile repair, such as metal doors and windows, auto parts welding. The equipment has the advantages of simple structure, good arc starting performance, stable welding, small size, light weight, easy to carry and energy saving.