L-9000d guard tour system is a lightweight and palm sized portable device. It is widely applied in any field with checkpoint installation. The L-9000d guard tour system is perfect for guard patrol systems (police, amy, airport and ports etc). Or security guards service company, factory, equipment and machine supervision, hospital hotel, residential area, forest and industries patrolling and guarding etc. It is also used in elevator maintenance and vending machine checking systems and railway, oil pipe, gasoline facilities regular checking and maintenance management.