| MODEL | DT-NS84 |
| IIT | Gen2+/Gen3 |
| Magnification | 4X |
| Resolution ( lp/mm) | 45-57 |
| Detection sensitivity(M) | 1500 |
| Distinguish distance(M) | 1000 |
| Lens system | F1: 1.4, F85mm |
| Aperture | 55mm |
| FOV(degree) | 11.5 |
| Distance of pupil | 50mm |
| Graduation type | Back Light red cursor |
| Minimum mil | 1/6MOA |
| Diopter range | +/-5 |
| Battery type | CR123(A)x1 |
| Battery life(H) | 40-50 |
| Range of focus(M) | 8--∞ |
| Operating Temperature (℃) | -40 /+60 |
| Relative humidity | 5%-98% |
| Impact resistance | >1000G |
| Environment rating | IP65(IP67 optional) |
| Dimensions(mm) | 257x92x90 |
| Weight(no battery) | 850g |


Rotate the battery cover anticlockwise, remove the battery cover (as shown in figure ① - 1), put one CR123 battery positive pole into the battery cartridge, and then align the negative pole of the battery cover with the battery negative pole of the battery cartridge (as shown in figure ① - 2).The locking nut of the digital aiming fixing clamp is twisted counterclockwise,and the fixing clamp slot of the digital aiming fixing clamp is corresponded to the pickup guide rail. The bottom of the clamping groove of the fixing clamp is attached to the top surface of the pickup guide rail. The locking nut of the clamping fixture is tightened clockwise to complete the installation of the aiming device.
As shown in Fig. 3, Turn the work switch along the clockwise direction. The knob indicates the location of "ON", when the system starts to work.
Choose a target with moderate brightness. The eyepiece is adjusted Without opening the lens cover. As in Figure 4, Turn the eyepiecehand wheel clockwise or counterclockwise. To match the eyepiece,when the most clear target image can be observed through an eyepiece,The eyepiece adjustment is complete. Different users need to readjust according to their vision.
The objective adjustment is need to see the target at different distances. Before adjusting the lens, must adjust the eyepiece according to the above method. When adjusting the objective lens, choose a dark environment target. As shown in Figure 5,Open the lens cover and aim at the target. Turn the focusing hand wheel clockwise or counterclockwise.Until you see the clearest image of the target, complete the adjustment of the objective lens.When observing targets at different distances, the objective needs to be adjusted again according to the above method.