Technical specifications:
| MODE | DTS-41 |
| Generation | Gen 2+/Gen3(optional) |
| Magnification | 1X |
| Resolution | 120 lp/mm |
| FOV( °) | 50+/-2 |
| Diopter | + / – 5 |
| Capability | Flip-Up On-Off |
| Optical distortion | 1% Max |
| Automatic Brightness Control | YES |
| Bright Light Cut-off | YES |
| Infrared Illuminator | Built-in(850nm 20mW) |
| IR Indicator | YES |
| Low Battery Indicator | YES |
| Power Supply | CR123A/AA(1)/Battery pack |
| Battery Life | 40 h – standard/ 300 h – with Battery Pack (optional) |
| Distance of pupil | 25-30mm |
| Eyepiece aperture | 9mm |
| Eye distance adjustment range | 55-85mm |
| Operating temperature | -40–+55℃ |
| Relative humidity | 5%-95% |
| Waterproof | IP65/IP67 |
| Dimensions | 154mmx100 mm x 88mm |
| Weight | 375g(housing )/490g(finished) |