A front imaging portion captures the front side of a vehicle. A rear imaging portion captures the interior or the rear side of the vehicle. A casing houses the front imaging portion and the rear imaging portion. A heat sink is located between the front imaging portion and the rear imaging portion in the casing to radiate heat inside the casing. A fixing portion is located on the outer surface of the casing and between a first end and a second end of the heat sink and separated from the heat sink to fix the casing to the vehicle. An intake is located adjacent to the fixing portion at the first end to be open toward the heat sink. An outlet is located adjacent to the fixing portion at the second end to be open toward the heat sink while facing the intake with the fixing portion interposed therebetween.