Spectra Precision AL Series AL28M Automatic Level 28X Automatic Level, Magnetically Damped
The AL28M Auto Level, with 24x magnification, is designed for a variety of elevation control and alignment tasks including general building construction, cut and fill measurements, area leveling, and landscaping.
The AL28M Auto Level, with 28x magnification, is designed for a variety of elevation control and alignment tasks including general building construction, cut and fill measurements, area leveling, and landscaping. A reliable automatic magnetically dampened compensator ensures stability and accuracy in the line of sight. Telescope optics are bright and clear providing sharp images for ease of viewing. A short focusing distance provides for better performance in tight spots or on steep slopes. Stadia lines on the reticle make distance calculations easy. A horizontal scale directly below the eyepiece makes angle measurement quick and convenient.
Features
- 28x magnification
- Magnetically dampened compensator
- Double-sided drives
- Stadia lines
- Horizontal angle measurement
- Built in bubble mirror
- Optical sighting alignment
- Metal housing
- Water resistant
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General
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| Weight | 3.5 lbs (1.6 kg) |
| Warranty | 3-year |
| Tripod Thread | 5/8-11 |
| Protection Class | Water resistant |
| Self-Leveling | yes |
| Units of Measure | Degrees, mm, m, in, ft |
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Distance Measurement
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| Time | 1.97 ft. (0.6 m) |
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Accuracy
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| Leveling | 1/16 in. per km double-run (1.5 mm) |
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Telescope
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| Magnification | 28x |
| Field of View | 2.3 ft. at 100 ft. (1° 20') |
| Diameter of Objective | 1.18 in. (30 mm) |
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Features
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| Bubble Vial | 8' / 2mm |
| Adjustment Knobs | 2 |
| Leveling Screws | yes |
| Horizontal Circle | 360° |
| Sighting Scope | yes |
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Compensator
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| Type | Magnetic dampened |
| Accuracy | 0.5? |
| Range | ±15’ |
| Manufacturer | Spectra Precision |
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Spectra Precision AL28M Manual