Half-open housings allow to easy access to inside mounted elements in contrast to sliding housings. Attention: The camera ground shouldn't be connected to the housing ground.
Built-in Infra-Red illuminator enables night monitoring. The range of IR illumination according to the manufacturer data, depends on outer conditions (visibility - air transparency, environment, wall colors ie. scene reflectance).
Internal view of the housing:
In the kit:
Manufacturer's Data Sheet EN