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Comparing Lasers

Description
 
 
Laser Performance
 
Grade range (%) ±15
Operating diameter with specified receiver/sensor (ft) 4,260
Laser wavelength and type (nanometer) 635 (visible red)
Rotation speed (rpm) 300, 600
Accuracy (arc seconds) 10
Self-leveling range (degrees)
Slope range (%) ±15
Power
 
Rechargeable battery type* Li-Ion
Rechargeable battery approx run time (hrs) 40
Backup battery quantity and type* 4, D
Backup battery approx run time (hrs) 60 alkaline
Dimensions
 
Dimensions L x W x H (in) 9.3 x 9.5 x 7.7
Weight w/o batteries (lbs) 6.0