The Hikvision DS-KH2220-S is a 7-inch four-wire analog video intercom indoor station engineered for residential and commercial door entry monitoring compatible with KIS204/205, featuring integrated image capture and local storage.

• Make/Brand: Hikvision
• Model: DS-KH2220-S
• Display Screen: 7-inch colorful TFT LCD
• Display Resolution: 800 × 480
• Operation Method: Physical buttons (Call Accept/Decline, Unlock, Live View, Image Key, Volume Wheel)
• Audio Architecture: Built-in omnidirectional microphone and loudspeaker
• Audio Processing: Noise suppression and acoustic echo cancellation
• Storage Functionality: Picture capture and playback support
• Wiring Interface: 4 four-wire interfaces (1-ch video input, 1-ch audio input/output, 1-ch power supply, 1-ch grounding)
• System Expansion: Supports cascading up to 3 indoor stations
• Device Compatibility: Hikvision 4-wire analog door stations and external CVBS/analog surveillance cameras
• Operating Voltage: 12 VDC
• Power Consumption: ≤5 W
• Operating Temperature: -10 °C to +55 °C (14 °F to 131 °F)
• Operating Humidity: 10% to 90% (non-condensing)
• Dimensions (L × W × H): 195.8 mm × 132.8 mm × 18.39 mm