| Physical Property | |
| System | Linux |
| Flash/DDR | 256MB/256MB |
| Protocol | Wi-Fi 2.4GHz, Zigbee, BLE Mesh |
| Power Supply | AC 100-240V 50/60Hz |
| Installation | Flush Mounting |
| Dimension | 86 x 86 x 36.2 mm (with Base) |
| Working Temperature | 0℃ - 40℃ |
| Working Humidity | 5%-90% |
| Display | |
| Display | 4-inch |
| Screen | Capacitive touch screen |
| Resolution | 480 x 480 |
| Audio | |
| Speaker | AAC1813 speaker |
| Microphone | Dual microphone |
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Datasheet 904M-S3.pdfDownload
