Mounting box protects Apollo fire detectors from water ingress

Apollo’s deckhead mounting box is a robust polycarbonate unit designed to protect bases, sounder bases and sounder beacons from ingress of water or other liquids. It is screwed to the soffit and accepts a variety of Apollo bases.
In most cases the device can be used on its own. An extension sleeve is required when fitting heater or deep bases. An adaptor ring is needed for fitting sounder bases, beacon bases or sounder beacon bases.
These mounting boxes have six cable access points for M20 glands and is secured to the mounting surface via two 5.4 mm holes in the webs.