Swoffer - Model 2100 or 3000-14 -Top Set Wading Rod

6/10 Depth Method rods are designed to be used while wading in streams, waterways and channels. Stream depth is noted using the larger graduated rod, then the corresponding marks on the smaller rod are used to slide the sensor to 6/10 of the depth from the stream surface, a standard average velocity depth in shallow waters. Top-set wading rods shown differ only in their depth measurement capabilities.