1.Fast speed to make the measurement more quickly. 2.Safety laser and large LED display. 3.Single prism Measure distance 2500m 1.Laser beam focused in non-prism mode for 300m distance.2.Strong software to help to achieve the measurment.3.RS232 or USB ports for option.4.Good laser to protect the eyes of the surveyor.5.Large LED display parameter:Telescope Magnification30XImageErectShortest ...