Laser Alignment LB-1 Laser Beacon - Used This Laser has been completely serviced and calibrated Laser Alignment LB-1 laser beacon is a one-person leveling system designed for most rugged environments. Accurate, stable and reliable, the LB-1 is ideal for longer range measurements across your across your entire site. Includes: LB-1 laser Rodeye 4 sensor Bracket 12 volt Auto Charger