1.The buoyancy device is customized, equipped with a counterweight system that can float the equipment with zero buoyancy underwater. The balance weight of the buoyancy device can be adjusted, accuracy is less than 500g;

2. It is equipped with eye-catching reflective strips, which can be clearly distinguished in dark environments;

3. It is equipped with a height adjustment system, with an adjustment range of 0.3-1 meter;

4. The connection system of the buoyancy device complies with the GB/T 25048-2010 fracture strength testing standard, with a fracture strength more than 1kN;

5. The floating backpack weight is less than 1.4kg. (excluding counterweight device).