HFWVISION K4W 3MP+3MP Dual-Lens WiFi Security Camera

Monitor both sides of a window with one compact camera. The HFWVISION K4W is a 3MP+3MP dual-lens WiFi window security camera designed for simultaneous indoor and outdoor monitoring through glass. Its dual-view design helps simplify installation while supporting reliable security monitoring for homes, apartments, storefronts and small businesses.

Key Features

• 3MP+3MP dual-lens design for indoor and outdoor viewing at the same time
• Two 3.6mm lenses with a large F1.0 aperture
• 2K video resolution up to 2304 × 1296P at 15fps
• 2.4GHz and 5.8GHz dual-band WiFi, Bluetooth and AP hotspot support
• Full-color night vision with automatic warm-light illumination
• AI human detection, human target framing, area detection and alerts
• Two-way audio with built-in microphone and speaker
• MicroSD storage up to 256GB, plus cloud storage support
• ONVIF and RTSP support with O-KAM Pro app compatibility

One Camera, Two Views

Place the K4W near a window or glass door to monitor indoor and outdoor areas with one device. The dual-lens layout provides two views without requiring two separate cameras, helping reduce installation complexity, cabling and equipment cost.

Clear Video and Night Monitoring

Each lens supports 3MP imaging with a 108-degree diagonal viewing angle. The F1.0 aperture is designed to capture brighter images in low-light conditions. Full-color night vision and intelligent warm-light illumination help improve visibility when a person approaches.

Night viewing distance is approximately 10 to 20 meters, depending on the environment and installation conditions.

Smart Detection and Two-Way Audio

AI functions include human detection, human target framing, area detection, human detection alarms and intelligent notifications. The built-in microphone and speaker support real-time two-way communication.

Flexible WiFi and Storage

The camera supports 2.4GHz and 5GHz WiFi, Bluetooth, AP hotspot connection and QR-code network configuration. It supports up to four simultaneous online viewers, microSD or T-Flash cards up to 256GB, and cloud storage.

Technical Specifications

• Model: HF-K4W-W6G
• Resolution: 2K 3MP per lens, 2304 × 1296P at up to 15fps
• Lenses: Dual 3.6mm, F1.0 aperture
• Viewing angle: Approximately 108° diagonal
• Video: H.265, MJPEG and JPEG
• Audio: G.711A, two-way audio
• Connectivity: 2.4GHz + 5.8GHz WiFi, Bluetooth, AP hotspot and QR-code setup
• Protocols: ONVIF and RTSP
• Storage: MicroSD/T-Flash up to 256GB and cloud storage
• Power: DC 5V/2A with a 2.5m USB Type-C cable
• Operating temperature: -10°C to 55°C
• Dimensions: Approximately 187 × 130 × 50mm
• Weight: Approximately 0.29kg

Recommended Applications

• Home and apartment window security
• Glass door and entrance monitoring
• Storefront and retail shop surveillance
• Small commercial premises

Package Contents

• HFWVISION K4W camera × 1
• 2.5m USB Type-C cable × 1
• Instruction manual × 1
• 5V/2A power supply × 1
• Right-angle bracket × 1
• Cable clips × 4
• 3M adhesive stickers × 4

For Wholesale, OEM and Private Label Projects

HFWVISION provides security camera manufacturing and OEM/ODM solutions for distributors, wholesalers, security brands and business customers worldwide.