Pls proceed by follow with wei Keong comment as below and set up to be 2 type warning upon wind speed measurement unit.
We have no objections to your proposal but would like to add the following:
Maximum wind speed that the building can resist is 16 m/s.
With this, to allow for some safety factor, we would like the alarm to be activated at 12 m/s.
Also the alarm/siren should have 2 different type of sounds
10 m/s: Sound Type A (to warn, be alert)
12 m/s: Sound Type B (evacuate building)
Any comments from the rest?