4CH Display & Recording Simultaneously Easy Installation & Convenient Use Connectable to Laptop Computer through USB Port High Resolution Digital Recording & Quality Picture Easy to Change Logo, Product Name and so forth for the Discrimination of Product Simultaneous Display of Live Images, Retrieving and Network Retrieval Diverse Recording Methods (Real Time, Motion, Sensor, Real Time & Alarm, Motion & Alarm ) Remote Control Function through Internet & Multi-User Environments Remote Monitoring through Web-Browser or Exclusive Client Software Capable of Monitoring in PDA Support of Masking Function to Protect the Specific Private Area Multi Screen Monitoring : 1/4 Split Screen Available Check of the Operation Log of System in Details Video Signal System : NTSC or PAL Camera Input : 4 Sensor Input : 4 Alarm Output : 4 Display Speed : - NTSC : Max. 60 frames/sec - PAL : Max. 50 frames/sec Recording Speed : 60 frames/sec Compression Method : MPEG4 Image Resolution : 320 x 240 Recording Mode : Continuous, Motion Detection, Sensor, Scheduling Multiple Recording Motion Detection : Cell Matrix (Adjustable Sensitivity) Image Verify : WATER-MARK Remote Access : Full Remote Control PSTN, ISDN, LAN, Leased Circuit, Internet Remote Setup : Supported P/T/Z Interface : RS-485(422) / RS-232 Dimension(mm) : 160(W) x 120(D) x 40(H) Weight : 300g