The Spectra Precision Optical AL100 and AL200 series auto-levels from Trimble are affordable, easy-to-use tools designed to deliver the highest level of accuracy to contractors, engineers, and surveyors in a wide range of applications. Featuring metal housing and easy-to read displays, the AL100 and AL200series levels provide the ideal combination of durability and quality. Capable of withstanding the most challenging jobsite conditions, these rugged and reliable auto-levels will provide many years of unwavering performance.