Topcon Prism Sz-15ub

The total station sends out a laser or infrared signal toward the prism. The Topcon prism reflects that signal directly back to the instrument. The time it takes for the signal to return is used to calculate the exact distance between the total station and the prism. This method is called EDM (Electronic Distance Measurement) and is widely used in: Land surveying Construction layout Road works Building and infrastructure development Key Features High reflectivity coating – Ensures accurate return signal Stable mounting system – Prevents movement and errors Visible target plate – Helps aiming the instrument Durable build – For tough outdoor use High centering precision – Vital for reliable measurements