CDV-70H/DRC-4LN

Here’s a breakdown of the Commax CDV‑70H monitor paired with the DRC‑4LN door camera:

📺 CDV‑70H (7″ Hands‑Free Indoor Monitor)

• Display: 7″ TFT‑LED color LCD, sharp and vibrant 

• Hands‑free communication with built‑in mic and speaker 

• Door lock release support for electric strike access 

• Expandable:

  • Up to 1 camera, 2 monitors, and 2 interphones (CDV‑70H) 

  • DVD‑70H2/70HM2 versions support more cameras, plus memory storage 

• System compatibility: Analog PAL/NTSC selectable, 4‑wire camera + 4‑wire interphone 

• Wiring distance: camera up to 50 m, interphone 30 m on 0.65 mm² cable 

• Power input: AC 100–240 V, 50/60 Hz (universal voltage) 

• Dimensions: 180×180×28 mm, surface wall‑mount 

• Extra features: OSD menu, adjustable volume, brightness, contrast, color; supports 3‑way talk among intercom units

   DRC‑4LN (Outdoor Door Camera Station)

• Camera: Color CMOS sensor; delivers standard PAL/NTSC video 

• Night vision: Built‑in white LED with illumination sensor for low‑light activation 

• Communication: Hands‑free voice; has volume control and call button 

• Power: 12 V DC, supplied via 4‑wire connection from monitor

• Mounting: Surface‑mounted, wall installation, suitable for outdoor use (not fully waterproof)