YSI 5909 DO Cap Membrane Kit
- Especially well suited for low flow, profiling, and flow cell applications.
- Can be used with the YSI 556
- Has the lowest flow dependence at 18% and approximately 18 second response time
|605307||5909 PE blue 2.0 mil cap membrane kit, 559 & 2003 polarographic sensors|
|052380||5238 probe reconditioning kit, for use with 5239, 85, 559, 2002 & 2003 DO probes|
|Usually ships in 3-5 days|
- (6) 2 mil blue cap membranes
- (1) Bottle of electrolyte solution
- (1) Sanding disk
- (1) Instruction sheet
- (3) Gaskets
In The News
A group of high schoolers in the Green Bay, Wisc. area are learning about careers in environmental science thanks to the Lower Fox River Watershed Monitoring Program . The program, supported by the University of Wisconsin, has involved more than 700 students since its 2003 launch.
“We have almost ten years of data,” said Annette Pelegrin, program coordinator. “It began in 2003 with five watersheds. We’ve trained teachers and schools that are interested and showed them how to measure different parameters.”
Those include flow, temperature, transparency and turbidity of the program’s streams. YSI 55 meters are used to measure dissolved oxygen and levels of phosphorus, ammonia and nitrogen are checked with a Hach colorimeter.Read More
Since its population bottomed out, the federally-endangered Piping Plover in the Great Lakes has made a comeback for the ages.
A population that once measured approximately 17 pairs and rebounded, hitting 76 pairs in 2017. The same year that count was made, the plovers had also returned to Gull Point, a nesting location that hadn’t been used in more than 60 years.
In an effort to understand some of the conditions that have allowed this species to return to its habitat, researchers have directed their attention toward a curious instrument for help.
A buoy that floats off the coast of Presque Isle State Park , near where Gull Point is located.Read More
Thirty years ago, white shark sightings near California’s beaches almost never happened. For Chris Lowe, who was a graduate student at California State University’s Shark Lab at the time, spying a dorsal fin from one of the ocean’s top predators was very rare.
Prior to the mid-90’s, an expansive commercial fishing operation and the loss of marine animals decimated white shark populations. If their food wasn’t being hunted, sharks were getting caught in gill nets. At that point, they would be killed anyways before getting brought to the market to be sold.
Then in 1994, California residents approved propositions that banned gillnets in state waters and enacted protections for the white shark.Read More