In-Situ Europe ClearView disposable single valve PVC bailers are an inexpensive sampling option. They are available in a

Lifting Cord - 3.5mm diam polyester cord

Slow emptying device for disposable bailers

Combine the WaterWatch² Expansion Box with the 7300w² Monitor to support up to eight sensors per monitor.

The core product in the WaterWatch range - the 7300 Monitor provides all the user interface and system configuration