The Dahua VTO4201F-P is a professional IP intercom / video door phone for outdoor entry control. Features:

• 1/2.9" 2 MP CMOS color camera with ultra-wide field of view (168.6° horizontal)
• 120 dB WDR and three-dimensional noise reduction for clear images in challenging lighting conditions
• Two-way audio with echo cancellation and digital noise reduction
• Remote unlocking via mobile app (DMSS/P2P)
• MicroSD memory up to 256 GB
• Internet connection via RJ45 10/100 Mbps
• Supports PoE (802.3af/at) or 12 VDC power supply
• Constructed from anodized aluminum, IP65 (outdoor use) and IK07 impact resistance
• Dimensions: 100 × 100 × 49.4 mm
• Weight: ~0.29 kg
• Supports surface and flush mounting, tamper detection, door status detection, lock control, and RS-485 interface