Product DescriptionThe door intercom with camera (KNZD-37W) is a stainless-steel door intercom installed outside the door, integrating a high-definition camera and push-to-talk functionality to provide video verification and two-way voice communication for entrance control. It is suitable for flats, villas, multi-tenant buildings and other access-control scenarios. The unit can be wall-mounted or flush-embedded and is corrosion-resistant and durable.
Features- Matching with most PABX, PBX and PAX systems.
- Main body made of full stainless steel (SUS304): robust and temperature resistant.
- Handset-free operation; built-in loudspeaker for hands-free communication.
- Lightning protection compliant with ITU-T K21 standard (automatic).
- Waterproof rating IP65 (can be upgraded to IP67).
- Metal shell with grounding connector and inner-circuit insulation for electromagnetic shielding.
- Support hotline call; ring-off can be realized automatically if the other side hangs up.
- SMTC craftwork for high product quality.
- Slim and smart design; available in embedded or hanging (wall-mounted) styles.
- Optional call time limit (e.g., calls limited to five minutes; auto ring-off if exceeded).
- ISO9000 (2000) certified telephone design.
SystemThe door intercom with camera is mainly used for access control of important areas, installed outside doors to verify visitor identity via the integrated camera and to provide voice communication with connected intercom or telephone systems.
Applications- Public telephone for indoor or outdoor environments
- Elevator phone
- Taxi or bus stands / stations
- Highway call box
- Railway, metro, ATM machine sides
- Tunnels, ports, docks, mines, generation facilities
- Suitable for wet or corrosive atmospheres
Caractéristiques / spécifications techniques- Model: KNZD-37W
- Size: 220 x 150 x 60 mm
- Material: SUS304 stainless steel
- Pickup device: 1/3 OV7949 CMOS
- System (video): PAL / NTSC
- Effective Pixels: 268(H) x 586(V) / 510(H) x 496(V)
- Sensing area: 5.961 mm x 4.276 mm
- Scanning system: 2:1 Interlaced Scanning
- Sync system: Internal synchronization
- Sharpness: 420 TV lines
- Horizontal sync frequency: 15.625 KHz / 15.734 KHz
- Vertical sync frequency: 50 Hz / 60 Hz
- Minimum illumination: 0 Lux / F2.0 with IR
- Video output: 1.0 Vp-p, 75 Ω
- Gamma coefficient: 0.45
- AGC: Auto
- Signal-to-noise ratio: >48 dB
- White balance: Auto
- Electronic shutter: 1/50 - 1/80000 (s) / 1/60 - 1/80000 (s)
- Backlight compensation: Auto
- Current: 80 mA ±10%
- Voltage: DC 12 V ±10%
- Operating temperature: -20°C ~ 50°C, RH 95% MAX
- Storage temperature: -30°C ~ 60°C, RH 95% MAX
- Lens: 3.6 mm, F = 2.0
- Camera angle: 90°
- Weight: 25 g
- Call transmission index (5 KM): SLR < 12, RLR < -1, STMR > 10; output impedance: 600 Ohm
- Memory dialing: up to 12 groups of numbers (max length 16 digits each)