S401 is popular edition of S200.
S401 will also be able to calculate several seismic intensity methods of other countries like S200.
FAST CALCULATE AND IMMEDIATE CONTROL:
S401-PSC calculates seismic intensity every 0.01s by adapting "real-time seismic intensity calculation method*".
VARIOUS CONTACT CONTROL:
Individual output contacts setting allows precise, flexible and real-time control for your applications using acceleration value, seismic intensity etc.
S401-PSC can improve measurement precision by adding 2 more outside sensors, and can work out an output decision by majority rule (data from 2 out of 3).
SIMPLE AND COMPACT:
S401-PSC contains integrated triaxial accelerometer and processing unit, making unit small and compact for easy installation.
EXTENSIVE REMOTE CONTROL AND OPERATION:
The data is set, obtained and displayed by PC through web browser, and you will notice real-time seismic information on PC display.
WIDE MEASUREMENT RANGE:
S401-PSC measures up to ±6G (±5880gal), and S401-PSC also can set ±2G (±1960gal) range for more detailed measurement.
*Patent by National Research Institute For Earth Science And Disaster Prevention of Japan