• Upon insertion of the detector, the detector base is stressed by compression, tension and torsion. The fixing must thus be designed accordingly.
• Detector bases must be placed flat on the ceiling.
• Avoid mounting on steps, concrete ribs, etc.
• When selecting the installation position, take into account any structures that may impair radio reception.

• There must be at least 50 cm of free space below and at least 2 cm to the sides of the detector, so that the detector can be removed with the detector exchanger.
• Contorted detector bases complicate or even impede the insertion of the detectors with the detector exchanger.