EQS-50 Series hand winch hydrology of rivers need to adapt to the measurement of water both for the development of a test ship, but also for the bridge patrol rivers hydrographic survey equipment, with light weight, arm length, easy to install, operate simple, high reliability, long life characteristics. Suitable for measuring vessel or culvert, bridge installed in any vehicle carrying a flatbed truck, pedal tricycle, tricycles, farm vehicles, jeeps, vans, tools, vehicles and goods passenger cars, etc., measurement of rivers, lakes, reservoirs, channels water depth, velocity and sediment concentration. EQS-50 hydrological winch, using single-core armored cable with rotating brushes composed of wired signal transmission, avoid at high flow velocity signal line easily thrust shortcomings, but also to avoid the trouble of manually retractable external wires. EQS-50 type hand winch hydrology section with three folding telescopic boom, boom fully extended when the total length of 2.5m, after folding the total length of less than 1m, especially for small bridge Hydrometric use. The main technical indicators ● Full depth: full depth of 30m (bridge to the river) ● cantilever length: length 2.5m, three-section telescopic boom folding, folding after no more than 1m .. ● maximum lifting weight: 50kg ● Signal Transmission: Single core armored cable, rotating brushes underwater signal transmission