Portable Integrated Seismic Recorder & Accelerometer 

The SMHR2 combines Reftek's latest generation of universal broadband
seismic recorder, with the advanced high resolution, force-balance
accelerometer, model 147. Designed to facilitate installation, security, and
maintenance in a single, secure enclosure optimized for early warning
system installations.

The SMHR2 features a 32-bit A/D performance boost and boasts a large
dynamic range. The enhanced dynamic range enables the SMHR2 to
record very small vibrations from its integrated seismic sensor, providing
detailed data for seismic analysis.