2021 High quality Intercom Doorbell - 280SD-R2 – DNAKE Detail:
| Physical Property | |
| System | Linux |
| CPU | 1GHz,ARM Cortex-A7 |
| SDRAM | 128MB |
| Flash | 64M DDR2 |
| Product Size | 170.5x111x38.5(mm) |
| Power | DC12V/POE |
| Standby power | 1.5W |
| Rated Power | 3W |
| RFID Card Reader | IC/ID (Optional), 200,00 pcs |
| Button | Single Mechanical Button |
| Temperature | -40℃ - +70℃ |
| Humidity | 20%-93% |
| IP Class | IP65 |
| Audio & Video | |
| Audio Codec | G.711 |
| Video Codec | H.264 |
| Camera | CMOS 2M pixel |
| Video Resolution | 1280x720p |
| LED Night Vision | Yes |
| Network | |
| Ethernet | 10M/100Mbps, RJ-45 |
| Protocol | TCP/IP, SIP |
| Interface | |
| Unlock Circuit | Yes |
| Exit Button | Yes |
| RS485 | Yes |
| Door Magnetic | Yes |
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Datasheet 280SD-R2.pdfDownload
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Our mission will be to grow to be an innovative supplier of high-tech digital and communication devices by giving worth added design and style, world-class production, and service capabilities for 2021 High quality Intercom Doorbell - 280SD-R2 – DNAKE, The product will supply to all over the world, such as: Chile, Plymouth, Armenia, Our focus on product quality, innovation, technology and customer service has made us one of undisputed leaders worldwide in the field. Bearing the concept of "Quality First, Customer Paramount, Sincerity and Innovation" in our mind, We have achieved great progress in the past years. Clients are welcomed to buy our standard products, or send us requests. You will be impressed by our quality and price. Please contact us now!







