A pressure sensor device with a housing including an electrical contact plug section which provides a pressure channel for a pressure sensor accommodated in the housing. The mirror is mounted on a stem that is magnetically attached to the gasses frame and extends forward from the frame. The wiper mechanism is further configured to cause the one or more windshield wipers to move across a surface of a windshield in a more linear motion than the arc motion of the wiper mechanism. A signal producing part produces a slope signal which repeats a slope waveform a plural times during one period of the position signal. In an alternate embodiment, the exhaust gas pressure is used to adjust the duty cycle determined by other operating parameters. The operating member is attached to the locking member on an opposite surface of the bottom plate.