Abstract: A monitoring device arrangement is disclosed comprising a mounting rail, and at least two fixed monitoring devices, said fixed monitoring devices each being mounted on a respective holder, said holders being arranged on said mounting rail, wherein each said holder comprises a lock device locking said holder in a determined position on said mounting rail, and wherein said lock device is releasable to allow sliding repositioning of said holder on said mounting rail.

Abstract: An image collector device comprising a sensor arranged on a circuit board, a lens, and a lens holder. The lens is mounted in the lens holder. A sensor space, in which the sensor is arranged, is formed between the lens and the circuit board. The image collector device further comprises a sealing device comprising a first end and a second end. A resilient circumferential wall portion extends between the ends. An end wall is arranged at the first end, an opening being formed in the end wall. An end wall portion surrounding the opening is flexible. The sealing device is arranged in the sensor space, the circumferential wall portion being arranged around the sensor and sealing the sensor space. The circumferential wall portion is compressed in a direction along said sensor space between the lens and the circuit board, and the opening in the end wall encloses the lens.

Abstract: An assisting suspension arrangement for suspending a monitoring device, comprising a hook member, a blocking member, and a resilient member is disclosed. The suspension arrangement is configured to adopt an open state and a closed state. The suspension arrangement is configured such that when the monitoring device is suspended by the suspension arrangement, the hook member is adapted to carry the weight of the monitoring device and thereby to move toward the open state; and such that when the load of the weight of the monitoring device is released from the hook member, the resilient member is adapted to move the hook member toward the closed state. A monitoring device comprising such a suspension arrangement is also disclosed.

Abstract: An assisting suspension arrangement for suspending a monitoring device, comprising a hook member, a blocking member, and a resilient member is disclosed. The suspension arrangement is configured to adopt an open state and a closed state. The suspension arrangement is configured such that when the monitoring device is suspended by the suspension arrangement, the hook member is adapted to carry the weight of the monitoring device and thereby to move toward the open state; and such that when the load of the weight of the monitoring device is released from the hook member, the resilient member is adapted to move the hook member toward the closed state. A monitoring device comprising such a suspension arrangement is also disclosed.

Abstract: An image collector device comprising a sensor arranged on a circuit board, a lens, and a lens holder. The lens is mounted in the lens holder. A sensor space, in which the sensor is arranged, is formed between the lens and the circuit board. The image collector device further comprises a sealing device comprising a first end and a second end. A resilient circumferential wall portion extends between the ends. An end wall is arranged at the first end, an opening being formed in the end wall. An end wall portion surrounding the opening is flexible. The sealing device is arranged in the sensor space, the circumferential wall portion being arranged around the sensor and sealing the sensor space. The circumferential wall portion is compressed in a direction along said sensor space between the lens and the circuit board, and the opening in the end wall encloses the lens.

Abstract: A monitoring device arrangement is disclosed comprising a mounting rail, and at least two fixed monitoring devices, said fixed monitoring devices each being mounted on a respective holder, said holders being arranged on said mounting rail, wherein each said holder comprises a lock device locking said holder in a determined position on said mounting rail, and wherein said lock device is releasable to allow sliding repositioning of said holder on said mounting rail.