| Place of Origin: | China |
|---|---|
| Brand Name: | GEOALLEN or OEM |
| Model Number: | NTDS serial |
| Color: | Gray/Yellow/Orange | Magnification: | 20X /24X /28X /32X |
|---|---|---|---|
| Image: | Erect | Degree: | 360degree Or 400g |
| Compensator: | Magnetic Damping | IP: | IP54 |
NTDS serial auto level with magnetic damping for construction Survey Instrument
| Type | NTDS20 | NTDS24 | NTDS28 | NTDS32 | |
| Telescope | Erect | ||||
| Zoom out | 20X | 24X | 28x | 32x | |
| Objective Lens Aperture | 30mm | 40mm | |||
| Field of view | 1°30′ | ||||
| The mix Stadia | 0.5m | ||||
| Stadia Ratio | 100 | ||||
| Stadia Constant | 0 | ||||
| Work Range | ±12′ | ||||
| Accuracy | ±0.5” | ±0.4” | ±0.3” | ||
| Blister Precision | 8’/2mm | ||||
| Diagraph on scale | 1° or 1gon | ||||
| Standard error per male | 2.5mm | 2.0mm | 1.5mm | 1.0mm | |
| Weight | 1.3kg | ||||
| The size of Triple | M16 or 5/8” | ||||
