| Model NO. | M904 |
| Type | Biological |
| Number of Cylinder | Monocular |
| Mobility | Desktop |
| Stereoscopic Effect | Stereoscopic Effect |
| Kind of Light Source | Ordinary Light |
| Usage | Teaching, Research |
| Drawtube | Monocular |
| Image Sensor | CMOS 640h X 480V |
| Frame Frequency | 60fps |
| Focus Range | Focus Range Manual Focus From 10mm to Infinity |
| Magnification Ratio | 20x to 200x |
| White Balance | Auto |
| Color Saturation | Auto |
| Light Source | 8 LEDs |
| Sensitivity | 2.0V/Lux-Sec (550nm) |
| TV Interface | AV |
| Transport Package | Carton |
| Specification | CE FCC |
| Trademark | DONTOP |
| Origin | Chongqing China |
| HS Code | 9011800090 |
| Production Capacity | 5000 PCS Per Week |