You can position the Fulleon Squashni Platform Sounder underneath a heat or smoke detector. It provides a solution for an audible warning in the same room as the detector, whilst minimising the costs. The ultra slim sounder is designed to be unobtrusive in terms of size and colour.
There is a choice of 28 different pre-set tones and you have control of the volume too. You can separately purchase a blank cover plate, should you decide to use it as a standalone sounder.