overview

The Closable Plankton Nets are a closed-end plankton collection network equipped with electronic flow meters and switches, capable of vertical sampling and collecting plankton samples from the middle and lower layers of water. The rope control is closed, equipped with an electronic flow meter, various types of mesh bags can be replaced (6-1000um), PVC pipe, diameter 200mm, length 350mm. The mesh has been tested under various water conditions (ocean, river, high flow velocity, high sediment content, etc.) and is not easily deformed. After long-term use, it can still maintain its mesh shape.

characteristic:

1. Vertical drag, used to collect plankton in the middle and lower layers of water;

2. The network port can be closed by using a fuse to control its opening or closing in a certain water layer;

3. Equipped with an electronic flow meter, users can obtain the flow rate of water through the network port, making later calculations more accurate;

The count value of the flowmeter can be transmitted to the water surface through a cable for display;

5. The bottom collection tube and mesh bag can be replaced.