Flame- proof radiation detector with wireless communication means

A radiation detector module according to claim 7, wherein the body portion of said housing is made from metal and the end cap comprises a non-metallic material.

A radiation detector module according to claim 9, wherein the indicating means comprises a light source (32), located inside the enclosure and optically connected to at least one light pipe (34) comprising an optically transmissive material that passes through the material of the enclosure wall to an external surface of the enclosure.

A method of manufacturing a radiation detector comprising the steps of:

• a. providing a radiation detector, power source and wireless communication means,
• b. providing a flame-proof enclosure comprising a housing body portion and at least one end cap, said body portion of said housing being made from metal and said end cap comprising a non-metallic material
• c. installing said radiation detector, power source and wireless communication means in said enclosure in such a way that, when the housing and at least one end cap are connected so as to form a flame-proof enclosure meeting the standards set out in BS EN 60079-1:2007, the wireless communication means can transmit communications signals to and receive communications signals from a location outside the enclosure.

16-18. (canceled)