The Dahua VTO6631QS-WP video door phone combines a 2 MP camera with a 5-inch IPS display and a resolution of up to 720 x 1280. It supports facial recognition, IC/ID cards, Bluetooth and password unlocking, while its IP65 protection rating makes it suitable for outdoor installation.

Facial recognition works at a distance of 0.3–2 m, with 99.9% accuracy and a response time of 0.2 s. It features a built-in speaker for two-way audio, infrared illumination and an SD card slot supporting cards up to 128 GB.

• Camera: 2 MP
• Display: 5-inch IPS
• Resolution: 720 x 1280
• Field of view: Horizontal 119°, vertical 66°, diagonal 142°
• Access methods: Facial recognition, IC/ID cards, Bluetooth and password
• Registration capacity: Up to 300,000
• User capacity: Up to 20,000
• Face capacity: Up to 20,000
• Facial recognition distance: 0.3–2 m
• Facial recognition accuracy: 99.9%
• Response time: 0.2 s
• Protection: IP65
• Connections: RS-485, Wiegand
• Video encoding: H.264, H.265
• Audio: Built-in speaker, two-way
• SD card: Up to 128 GB
• Alarm input: 2 channels
• Alarm output: 1 channel
• Power supply: PoE or 12 V power adapter
• Maximum power: 10 W
• Maximum current consumption: 3000 mA
• Material: Tempered glass, PC and ABS
• Operating temperature: -30 to 60 °C
• Dimensions: 186.8 x 81.4 x 23.3 mm
• Weight: 0.82 kg