Topcon RT-5Sa Dual Slope Grade Rotary laser Machine.. The item "Topcon RT-5Sa Dual Slope Grade Rotary laser Machine" is in sale since Sunday, November 3, 2019. This item is in the category "Business & Industrial\Test, Measurement & Inspection\Levels & Surveying Equipment\Levels & Autolevels\Rotary Lasers". The seller is "1627f" and is located in Ephrata, Pennsylvania. This item can be shipped to United States.