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| NE-100 | NE-101 | NE-102 | NE-103 |
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| TELESCOPE | | | | |
| Effective diameter of objective: | 1.77 in (45 mm) | 1.77 in (45 mm) | 1.77 in (45 mm) | 1.77 in (45 mm) |
| Magnification: | 30x | 30x | 30x | 30x |
| Image: | erect | erect | erect | erect |
| Field of view: | 1°20' (2.3ft @ 100 ft / 2.3m @ 100 m) | 1°20' (2.3ft @ 100 ft / 2.3m @ 100 m) | 1°20' (2.3ft @ 100 ft / 2.3m @ 100 m) | 1°20' (2.3ft @ 100 ft / 2.3m @ 100 m) |
| Minimum focusing distance: | 2.3 ft (0.7 m) | 2.3 ft (0.7 m) | 2.3 ft (0.7 m) | 2.3 ft (0.7 m) |
| Stadia multiplier constant: | 100 | 100 | 100 | 100 |
| Stadia additive constant: | 0 | 0 | 0 | 0 |
| Reticle illuminator: | provided | provided | provided | provided |
| ANGLE MEASUREMENT | | | | |
| Reading system: | photoelectric incremental encoder | photoelectric incremental encoder | photoelectric incremental encoder | photoelectric incremental encoder |
| Circle diameter: | 3.1 in (79 mm) | 3.1 in (79 mm) | 3.1 in (79 mm) | 3.1 in (79 mm) |
| Unit of reading: | degree / gon / mil | degree / gon / mil | degree / gon / mil | degree / gon / mil |
| Minimum digital reading¹: | 10/20", 2/5 mgon, 0.05/0.1 mil | 5/10", 1/2 mgon, 0.02/0.05 mil | 5/10", 1/2 mgon, 0.02/0.05 mil | 5/10", 1/2 mgon, 0.02/0.05 mil |
| Accuracy (DIN 18723) | 10" / 3 mgon | 7" / 2 mgon | 5" / 1 mgon | 5" / 1 mgon |
| AUTOMATIC VERTICAL COMPENSATOR | — | — | — | |
| Type: | — | — | — | liquid-electric detection |
| Working range: | — | — | — | ±3' (out-of-range warning provided) |
| NE-100 | NE-101 | NE-102 | NE-103 |
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| DISPLAY/KEYPAD | | | | |
| Front | | | | |
| Type: | dot-matrix LCD (20 characters x 2 lines) | dot-matrix LCD (20 characters x 2 lines) | dot-matrix LCD (20 characters x 2 lines) | dot-matrix LCD (20 characters x 2 lines) |
| Backlight: | 1-level illumination | 1-level illumination | 1-level illumination | 1-level illumination |
| Keypad: | 5 buttons | 5 buttons | 5 buttons | 5 buttons |
| Rear | | | | |
| Type: | — | — | dot-matrix LCD (20 characters x 2 lines) | dot-matrix LCD (20 characters x 2 lines) |
| Backlight: | — | — | 1-level illumination | 1-level illumination |
| Keypad: | — | — | 5 buttons | 5 buttons |
| OPTICAL PLUMMET | | | | |
| Magnification: | 2.2x | 2.2x | 3x | 3x |
| Field of view: | 5° | 5° | 5° | 5° |
| Focus range: | 4.3 ft (1.3 m) fixed | 4.3 ft (1.3 m) fixed | 1.6 ft (0.5 m) to infinity | 1.6 ft (0.5 m) to infinity |
| LEVEL SENSITIVITY | | | | |
| Plate level: | 60" / 2 mm | 40" / 2 mm | 30" / 2 mm | 30" / 2 mm |
| Circular level: | 10' / 2 mm | 10' / 2 mm | 10' / 2 mm | 10' / 2 mm |
| NE-100 | NE-101 | NE-102 | NE-103 |
|---|
| LEVELING BASE | | | | |
| Type: | detachable | detachable | detachable | detachable |
| AMBIENT TEMPERATURE RANGE | -4 TO 122 °F (-20 to 50 C) | -4 TO 122 °F (-20 to 50 C) | -4 TO 122 °F (-20 to 50 C) | -4 TO 122 °F (-20 to 50 C) |
| ENVIRONMENTAL RATING | IP54 | IP54 | IP56 | IP56 |
| NE-100 | NE-101 | NE-102 | NE-103 |
|---|
| DIMENSIONS | | | | |
| Instrument: | 6.0 x 6.8 x 13.1 in (153.5 x 172 x 334 mm) | 6.0 x 6.8 x 13.1 in (153.5 x 172 x 334 mm) | 6.0 x 6.8 x 13.1 in (153.5 x 172 x 334 mm) | 6.0 x 6.8 x 13.1 in (153.5 x 172 x 334 mm) |
| WEIGHT | | | | |
| Instrument: | 9.8 lbs (4.5 kg) | 9.8 lbs (4.5 kg) | 9.9 lbs (4.5 kg) | 10.1 lbs (4.6 kg) |
| Carrying case: | 5.4 lbs (2.5 kg) | 5.4 lbs (2.5 kg) | 8.6 lbs (3.9 kg) | 8.6 lbs (3.9 kg) |
| POWER SUPPLY | | | | |
| Battery type: | 1.5V alkaline AA x 6 | 1.5V alkaline AA x 6 | 1.5V AA Alkaline x 6 | 1.5V AA Alkaline x 6 |
| Continuous operating time (at 68 °F / 20C) | 48 hrs | 48 hrs | 48 | 48 hrs |
