Audio and video controlpni df-926 is a practical and modern video intercom that includes an external camera unit and 1 Monitor With a 7" Screen and 800 x 600px resolution. This intercom video model is a simple solution to make more secure the Access to your home. You can see who is at the door, you can talk to that person and you can activate the automatic door opening if you have an electrical lock, so avoid unpleasant surprises and undesirable guests. Night visionthe external unit includes a colour video camera, microphone, ring button and a speaker for bidirectional communication. Thanks to infrared LEDs, even in absolute dark conditions, you can identify the person in front of your door. Two-way communication df-926 intercom adopts a closed video monitoring circuit and consists of an outdoor unit that transmits the image to the home monitor. Communication is bidirectional. Possibility to connect an access control systempni df-926 video doorbell can connected and can control an electromagnetic yoke or access control system (sold separately), giving you the possibility of opening the Access door by simply pressing a button on the Internal unit. Technical specifications: LCD screen: 7 " Screen resolution: 800 x 600 px electrical lock control: Yes, 12V/1A 0.3S intercom: yes, up to 90 s ring options: 3 songs power voltage: 15 V C.C., 1000 mA connection between indoor and outdoor unit: 4 wires cable indoor unit dimensions: 225 x 165 x 36 mm outdoor unit dimensions: 134 x 100 x 45 mm Weight: 650 g working temperature: -10°C+ 50°C