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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We are convinced that with joint endeavours, the small business between us will bring us mutual benefits. We could assure you products quality and competitive selling price for 2021 High quality Intercom Doorbell - 280SD-R2 – DNAKE, The product will supply to all over the world, such as: Denmark , United Arab emirates , Qatar , We aim to become the modern enterprise with the commercial ideal of "Sincerity and confidence" and with the aim of "Offering customers the most sincere services and best quality products". We sincerely ask for your unchanged support and appreciate your kind advice and guidance.








