♦ 20 coordinate points to describe the river’s shape of cross section. ♦One instrument can measure the velocity, depth and conductivity at same time. ♦Velocity Range : 0.02mm/s to 10m/s bi-directional, accuracy is 1%. ♦Depth Range: 0 to 10m ♦Measure velocity in both forward flow and back flow. ♦ Depth is measured by both the pressure sensor and ultrasonic level sensor principles. ♦ With coordinate correction and pressure compensation function. ♦IP68 Epoxy-sealed body design, long time under water. ♦ RS485/MODBUS output, can contact computer directly.