The Johnson Rotary Laser Level is a high-quality tool designed for precise and accurate l eveling tasks. With its red beam color and electronic auto-leveling method, this model ensures reliable performance for various applications. Featuring two beams and a durable construction from the trusted brand Johnson, this rotary laser level is a must-have for professionals in the construction, surveying, and inspection industries. The 40-6539 model offers advanced technology and user-friendly features to help users effortlessly achieve perfect levels in their work. this unit has been used 5 times