
Technical specifications:
| MODEL | DT-NSCB1 | DT-NSCB3 | 
| Generation | Gen 2+/Gen3(optional) | Gen 2+/Gen3(optional) | 
| Magnification | 1X | 2X | 
| Resolution | 60-64 | 60-64 | 
| Objective pupil | 22mm | 40mm | 
| FOV(°) | 40 | 13.5 | 
| Exit pupil diameter (mm) | 50 | 50 | 
| Distance of pupil | 9 | 9 | 
| Eyepiece aperture(mm) | +/-5 | +/-5 | 
| Battery type(v) | The 1 section 3V lithium battery | The 1 section 3V lithium battery | 
| Battery life(h) | 40-50 | 40-50 | 
| Operating temperature(℃) | -40 /+50 | -40 /+50 | 
| Relative humidity | 5%-98% | 5%-98% | 
| Impact resistance | >800G | >800G | 
| Waterproof | IP65/(IP67optinal) | IP65/(IP67optinal) | 
| Dimensions(mm) | 160x55x69(including eye mask) | 250x58x70(including eye mask) | 
| Weight (g) | 295g(finished) | 338g(finished) |