AL series are optical instruments mainly used in surveying and building to transfer, measure, or set horizontal levels.It is a high quality, accurate, water resistant and low cost unit ideal for site measurements.
Feature
• 7-pieces built-up telescope system gets clearer images
• Exclusive closed magnetic field
• Magnetically-dampened compensator
• Compensator lock
• X-type thread air-damper applied to tilt sensor, high precision and reliable.
• All metal housings for increased durability
• Top-mounted optical peep-sight for quick reference
• Superior shake-resist, waterproof and dustproof