Hikvision Kit including DS-KB2411-IM and DS-KH2220

Indoor Station (DS-KH2220-IM) Display Parameters Display Screen: 7-Inch Colorful TFT LCD Display Resolution: 800 × 480 Operation Method: Physical Button Audio Parameters Audio Input: Built-in Omnidirectional Microphone Audio Output: Built-in Loudspeaker Audio Compression Rate: 64 Kbps Audio Quality: Noise Suppression and Echo Cancellation Device Interfaces Four-wire Interface: 4 Four-Wire Interfaces (1-ch Video Input, 1-ch Audio Input/Output, 1-ch Power Supply, 1-ch Grounding in 1 Four-Wire Interface) General Power Supply: 12 VDC Power Consumption: ≤5 W Working Temperature: -10° C to 55° C (14° F to 131° F) Working Humidity: 10% to 90% Door Station (DS-KB2411-IM) Video Parameters Camera: 1/4″ CMOS Resolution: 720 × 576 Video frame rate: PAL: 25 fps Audio Parameters Audio Input: Built-in Omnidirectional Microphone Audio Output: Built-in Loudspeaker Audio Quality: Noise Suppression and Echo Cancellation Light Supplement Light Supplement Mode: Photosensitive IR Supplement, IR Range: 2 Meters Device Interfaces I/O Output: 1 Relay Output Four-wire Interface: 1 Four-Wire Interface (1-ch Video Input, 1-ch Audio Input/Output, 1-ch Power Supply, 1-ch Grounding) General Material: Aluminum Alloy Power Consumption: Max. 3W Working Temperature: -30° C to 60° C (-22° F to 140° F) Working Humidity: 10% to 90%