Here is the Pelco ExSite IPSXM30CBW232 Explosion-proof Positioning System it is an in-ceiling fully-integrated enclosure camera with lens. What really stands out about this product is the stringent explosion-proof requirements that have to be met in order to classify for this distinction.
The electropolished 316L stainless steel construction makes the IPSXM30CBW232 ideal for all kinds of environmental conditions including marine applications. The IPSXM30CBW232 is versatile enough to install either in an upright or inverted position no matter the environment. The IPSXM30CBW232 combines a receiver, pan/tilt, and enclosure in a single, easy-to install system, but also includes an Integrated Optics Package (IOP). The IOP features a 23X day/night, 80X wide dynamic range, motion detection, and 540 TVL camera for optimal performance.