Overall rating | ☆☆☆☆☆ |
Overall rating |
The product if quickly, in a box that had been opened, the batteries were installed and the box contained a foam insert. Do not know why this was sold as new.
The product seems to work as it should. In bomb protection with insulation boards in the ceiling, these are barely enough. In rock halls without insulation, double protection is required. Return forms fans only in Finnish / English.