The holder is also quite easy to install. 2 screws in the wall and you're done. Only I wonder if you have thought when planning the bracket because the one more or less just have to attach the bracket to the fire extinguisher. The tape is supplied to the with is in an emergency to solve probably quite quickly, but I have 10 minutes needed until I had secured the extinguisher so.
An otherwise you should be aware that this fire extinguisher is not intended to extinguish major fires! I guess that you can also delete about 10 seconds, if at all. In any case, you should, as with any extinguisher, made a fire helper course before using.