Concealed fire detector suspension apparatus

Concealed fire detector suspension apparatus comprising:

• a fixing collar having a fixing annulus and a plurality of radial locking tabs insertable through the fixing collar from an interior of the fixing collar to extend radially therefrom to clamp in opposition to the fixing annulus in use;
• and a removeable fixing foot configured for engaging a stem of an upright support for a fire detector and having a peripheral outward locking formations which mechanically interlock with corresponding inward locking formations on an inner surface of the fixing collar such that in use, the apparatus is configured for installing the fixing collar via a ceiling cutout, inserting the radial locking tabs through the fixing collar from the interior thereof to clamp the ceiling in opposition to the fixing annulus, inserting the upright support through the fixing collar and locking the outward locking formations of the fixing foot to the corresponding inward locking formations of the fixing collar, thereby supporting the upright support through the ceiling.