A surveillance camera device receives power transmitted from an external power source and includes a camera for capturing images, a cable module coupled to the camera and the external power source, a casing disposed on the cable module, a temperature/moisture sensor and a circuit board. The temperature/moisture sensor is disposed in the casing for detecting a temperature/moisture value. The circuit board is disposed in the casing. The circuit board is coupled to the temperature/moisture sensor and coupled to the camera and the external power source via the cable module for transmitting the power transmitted from the external power source and the temperature/moisture value transmitted from the temperature/moisture sensor to the camera via the cable module.