Dust separators; air filters for motors and engines

TRUCK STOP MANAGEMENT SYSTEM COMPRISED OF UNATTENDED PARKING METERS, COMPUTER PROGRAMS FOR TIME AND ATTENDANCE SCHEDULING AND FOR THE ENABLING OF FACILITY ACCESS OR ENTRANCE CONTROL, BIOMETRIC FINGERPRINT TIME CLOCK, COMPUTER SOFTWARE FOR DETECTION OF ENGINE IDLING, DIGITAL CAMERA FOR CONTINUOUS RECORDING, REMOTE DISPLAY PANELS, COMPUTER SOFTWARE FOR ISSUING EMERGENCY ALERT AND ENABLING IN-CAB COMMUNICATION, COMPUTER SOFTWARE FOR ENABLING MOTION-ACTIVATED AREA LIGHTING, AND COMPUTER SOFTWARE ...