... 6'', 320*240 TFT color LCD displayInput channels: 1,2,3,......16, completly photoelectronic isolation.Input: Universal input.Input Signal ... relay alarm output (Max)Print or communication portUSB portTransmission5VDC,12VDC,24VDC auxiliary power supply for sensors. USB port: plug and play. Support ... timeRecord interval can be set optionally, such as 1, 2, 3, 4, 5,6s……16-channels record time: 360 days( ...