The new Endevco model 87 delivers the industry’s best signal to noise in a compact seismic accelerometer through state-of-the-art integrated electronics. Plus, at six ounces, the device is 70% lighter than traditional IEPE seismic accelerometers. It is hermetically sealed against environmental contamination, available in 1 V/g or 10 V/g sensitivity, and provides near-dc frequency response flat to 0.05 Hz.