We took profit of the presence of many NN seismic sensor at NEB for testing the tranfer function of a cleaning Roomba system (from top of the Roomba to the floor).

We put the Roomba near the NNNEB007 sensor, and placed over it the NNNEB006 sensor using a double-stick tape.

The setup will remain in that configuration until the next maintenance period, where everything will roll-back.

NN sensors measure only the vertical axis, so no information will be available about horizontal transfer function.