A truck bed camper shell and hard tonneau cover device is provided which is activated for movement between a raised truck bed camper shell position and a lowered hard tonneau cover position by remote activation of actuators such as pneumatics or hydraulic cylinders or a screw drive mechanism. It is proposed that the sides of both bars facing away from one another also be equipped with at least one respective recess, so as thereby to increase the number of possibilities for specimen retention when both sides of the bar are used by transposing the bars or by inserting them after a 180-degree rotation. The locking mechanism may include an engagement member with an oblique surface configured to slide along an oblique surface of the coupling head into engagement with the elongated member. The image capturing module includes a second housing and an image capturing unit. The common ground inductor connects the common terminal of the shunt resonators to the ground terminal.