The HOC-LOC™ Chassis Security System offers the same degree of security and the operational advantages of the Trailer Security System, but is configured for installation on bare chassis.  The basic HOC-LOC™ Chassis Security System includes the Automatic Brake Lock with Keypad, which eliminates the need for keys, locks, and other security devices. This basic system can be operated in combination with the optional GPS Tracking & Control Unit. The addition of these components allow operation, programming, and event reporting from remote locations with password access from a desktop computer. Home | Trailer Systems | Truck Systems | Trailer Door Lock | Chassis System | Container System | Equipment Systems About Us | Benefits | News | Links | Contact Us PATENT PENDING It is the policy of the J.P. Holt Corporation to vigorously defend its intellectual property rights