- Nous contacter
This design incorporates improvements by Dr. R. O. Brinkhurst, Institute of Ocean Sciences, specifically for obtaining quantitative samples of fast-moving Tubificidae. Because the valve is locked open during descent, there is minimal frontal wave and minimal warning to fauna at the water/bottom interface. It is messenger-operated and is under your full control: you can keep the K-B® open until you are sure you have a sample. The heavy K-B® affords better penetration. Units are also available without carry cases.
Medium units weigh 7 kg (15 lb.) and include # 2400-B20 :
Heavy units weigh 16 kg (36 lb.) and include # 2401-B20 :