What the different features of seismic instruments?

WZG-6A, WZG-12A, WZG-24B is based on WZG-24 engineering seismograph. The instruments need to work with industrial computer or notebook. The external computer could collect data though USB interface; while internal rechargeable battery ensures 8 hours work or more. 

WZG-24A, 48A seismographs integrate IPC in one unit. And the data is transmitted though a high-speed USB port between collecting device and IPC. The instrument takes imported box and touch screen technology which features strong, nice looking, easy operation.