Abstract: The present invention discloses a surveillance camera, which comprises: a housing for accommodating substrate and internal components; the housing includes a base and an upper cover, the base is provided with a retaining ring at the periphery of its bottom and a plurality of bolt holes at its periphery in the circumferential direction, and the base is fixed firmly to the upper cover by bolts to form a cavity; for each of the bolt holes there is provided a guiding groove at its bottom end; each of the bolt holes is provided at one side with a gutter, which is connected with the guiding groove; the upper cover is also provided with gutter; the base is provided at its bottom with a mounting hole for installing a dehumidifying means, and at the periphery of the mounting hole there is a retainer, at the outer edge of which there is provided a guiding gutter, which is connected with the gutter of the base.

Abstract: The present invention discloses a surveillance camera, which comprises: a housing for accommodating substrate and internal components; the housing includes a base and an upper cover, the base is provided with a retaining ring at the periphery of its bottom and a plurality of bolt holes at its periphery in the circumferential direction, and the base is fixed firmly to the upper cover by bolts to form a cavity; for each of the bolt holes there is provided a guiding groove at its bottom end; each of the bolt holes is provided at one side with a gutter, which is connected with the guiding groove; the upper cover is also provided with gutter; the base is provided at its bottom with a mounting hole for installing a dehumidifying means, and at the periphery of the mounting hole there is a retainer, at the outer edge of which there is provided a guiding gutter, which is connected with the gutter of the base.