The HOBO® U20L-02 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments.
The HOBO® U20L-04 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments.
The HOBO® U20L-01 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments.
Wireless setup and download via bluetooth technology. Lowers the cost of field data collection by providing wireless access to high-accuracy water level and temperature data.
Made of clear plastic that unobtrusively highlights all types of specimens, the triangle stand comes in a variety of sizes to accommodate small, medium, and large specimens.<BR><BR>Small/Medium Size: 2 1/4"L x 2"W x 1"H. Package of four.<BR><BR>Medium/Large Size: 3"L x 2 1/2"W x 1 1/2"H. Package of four.<BR><BR>Large Size: 4"L x 3"W x 1 3/4"H. Package of four.
Estimate stream quality as it relates to solids in the water.<BR><BR>This Turbidity Tube is made from 1-<sup>3</sup>/<sub>4</sub>" (4.4 cm) clear polycarbonate tubing and is marked with easy to read black numbers on a white tape; tape is marked in centimeters. A drain tube with a crimp are supplied so the sample can be drained off until the Secchi pattern on the bottom just appears. The height of the water column is then recorded. Overall length of the tube is 24" (61 cm).<BR><BR>The optional Transparency Tube (item #67311-46) allow you to measure turbidity in streams where a secchi disk can't be used--simply fill the tube with water and look down. Each clear polycarbonate tube features a centimeter scale on one side and a secchi disk design, 2" (4.5 cm) in diameter, on the bottom. The secchi design is screwed to a rubber stopper that removes for cleaning. Drain the tube with the drain hose and attached finger crimp. Ideal for the GLOBE program!
The life style of youth in the city often does not include involvement in outdoor activities or contact with nature. They may feel that environmental issues are not a part of their world when actually, urban environmental issues involving waters are all around them. This kit provides a hands-on introduction to the basic concepts of water chemistry and environmental awareness in urban areas.
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