Sonda Canal di Sensas per misurazione dondo. Adatta Per channel and laghi dove solitamente i fondali sono melmosi. La sua forma larga e piatta tends not to deepen.
PLUMMET CANAL For dondo measurement. Suitable For canals and lakes where usually the bottoms are muddy. Its wide, flat shape tends not to sink.
CHANNEL PROBE for measuring dondo. Suitable for canals and lakes with generally muddy bottoms. Its wide, flat shape tends not to sink.