| Model NO. | ND544S |
| Objective Diam | 40mm |
| Minimum Observation Distance | 0.8m |
| Field of View | 5degx3.75deg; |
| Range | 2-200m |
| Light Device | IR LED |
| Feature | Can Be Mounted on Scopes or Guns |
| Net Weight | 400g |
| Transport Package | Soft Pouch and Color Gift Box |
| Specification | CE FCC |
| Trademark | DONTOP/OEM |
| Origin | Chongqing China |
| HS Code | 9005809000 |
| Production Capacity | 2000PCS Per Week |