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Cornerstone Features and Specs
  

Simultaneous Plumb-Level and Square Planes, orthogonal to 10 arc-seconds
Auto-level to 1/16”@100’
Grading to +/-5°
Goniometer for +/-3° Azimuthal Aiming
Operating Temperature Range 30°-100°F (0°C-40°C); Storage -20°C to 60°C
Overall weight: 3.5lbs
Washdown-able (IP66)
Rechargeable Li-Ion Battery – 10-25 hours run-time from full charge, depending on laser usage.
Alternative manual leveling
Diamond-turned aspheric optics
Brushless DC Gearmotors
Gold-Plated Charger Contacts
Machined from 7075 ALU and 440C Stainless
Ceramic Hardcoat Anodized
Hardwood Grips; optional Hand-Checkering