Topcon's newly-designed engineering and construction automatic levels are streamlined and more compact then ever. They are lightweight for easy transport and the completely waterproof telescope is effective for all kinds of wet surveying operations. Accessories: Looking for long range? Topcon offers an entire line of AT-G Auto-Levels. Contact your local Topcon Dealer for information on these long range models: AT-G1: 32x magnification, angle readings to 10 minutes, 2-speed focus, and an impressive list of optional accessories to get the job done fast, the first time.