BG4 Sleeve (S32020) is a protective housing component designed specifically for BG-4 type geophones used in seismic data acquisition systems. It provides essential protection against environmental conditions and ensures stable operation in the field. Function: The sleeve protects the geophone body from impacts, dust, moisture, and mud, maintaining equipment reliability and data accuracy in rugged environments. Applications: Seismic data collection Geophysical field surveys Harsh environmental conditions Oil, gas, and earth science research