TOPODRONE survey grade drones are designed to perform high-precision aerial survey and mapping. All drones are equipped with a multi-system L1/L2 TOPODRONE PPK on-board GNSS receiver with integrated IMU, which allows you to perform aerial survey with an 2-3 cm accuracy XYZ without using GCPs. These drones are suitable for creating 1:500 topographic maps, accurate measurement of volumes, engineering and other surveys.