• The latest addition to the popular Cascadia series of single cased instruments, the Cascadia 120 Slim Posthole, combines the ultra low-noise of the Trillium 120 Slim Posthole seismometer with the high clip level of the Class A Titan accelerometer.
  • Mass position represents a quasi-static acceleration applied to the inertial mass of a seismometer to keep it balanced at its operating point. This acceleration changes with tilt (due to gravity) and temperature (due to the temperature coefficient of the springs).