Features:Power supply for 4 channels camera With 7 inches TFT monitor, easy to use MJPEG compression Supports CIF and PTZ functions 4-channel video input and 1-channel video output USB connection to PC Professional software for video playback and storage NTSC/PAL selectable Video lost alarm Supports HDD 1,000G Schedule/motion detection recording Perfect alarm and operating log are convenient for analysis and detection Selectable English and Chinese Used in small surveillance area such as house, small supermarkets, gas stations and villasSpecification:File formats: AV1 and MYS Compression (single-channel): MJPEG Storage space: 12 to 20K/frame Video input/output:NTSC: 4 channels input/1 channel output PAL: 4 channels input/1 channel outputDisplay frame rate:NTSC: 120fps (4 x 30fps) PAL: 100fps (4 x 25fps)Recording frame rate (full screen mode):PAL:Simple scenes: 8 to 17KB Complex scenes: 10 to 23KBNTSC:Simple scenes: 7 to 14KB Complex scene: 8.5 to 19KBRecording modes: manual, schedule and motion detection Playback modes: one and four channels Searching modes: by time, date and event HDD maximum of 1,000GB, supports SATA HDD Remote control: supported Alarm: video lost alarm PTZ: supports PTZ function USB port: supports USB 2.0 Supported languages: simplified Chinese and English Power supply: 12V DC/4A Working temperature: -10 to 50°C Working humidity: 10 to 90% RH Dimension: 200 x 130 x 230mm Net weight: 2.5kg Gross weight: 3.5kgCarton size: 57.5 x 39.5 x 31.5cm Gross weight/carton: 21.6kg Carton quantity: 4 sets/carton