| Customization: | Available |
|---|---|
| Technology: | Infrared |
| Style: | Pan/Tilt |
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| Model | NB2021 | NB3021 |
| Enhancement Tube | Gen2+ | Gen3 |
| Resolution (lp/mm) | 48-65 | 65-72 |
| Cathode Surface | S25 | Gallium Arsenide |
| Signal to Noise Ratio (dB) | 17-21 | 21-24 |
| Optical Sensitivity (microampere/lumens) | 550-650 | 1500-1800 |
| Trouble-free Time(h) |
10000 | 10000 |
| Magnification | 1x | 1x |
| FOV | 40° | 40° |
| Diopter Adjustment Range | +5/-5 | +5/-5 |
| Lens system(mm) | F1.2, 25.8 | F1.2, 25.8 |
| Objective Lens Adjustment Range | 0.25-∞ | 0.25-∞ |
| Volume(mm) | 142X110X55 | 142X110X55 |
| Weight(g) | 798(1100 with helmet) | 798(1100with helmet) |
| Power Supply Voltage (V) |
2.0-4.2 | 2.0-4.2V |
| Battery Type | 1X CR123A Lithium BatteryOR AA X1 | 1X CR123A Lithium BatteryOR AA X1 |
| Continuous working time (h) | 80(Without Infrared) | 80(Without Infrared) |
| 40(Infrared) | 40(Infrared) | |
| Operational temp.(°C ) | -40/+60 | -40/+60 |
| Dustproof and Waterproof Grade | IP68(Optional Accessories) |
IP68(Optional Accessories) |