Honeywell pH, ORP, dissolved oxygen and conductivity instrumentation, provided by Seelaus Instrument Co., Inc.

ASTI manufactures customized application oriented solid state long lasting pH, ORP and Ion Selective replacement sensors for difficult process and wastewater measurements

Oregon Raceway Park is an exciting, new, 2.3 mile road course facility in Grass Valley, Oregon. It is currently the only track in the Pacific Northwest that offers both clockwise and counterclockwise driving. It is a technically challenging course that follows the natural contours of the land.

Finely crafted hot tubs from redwood, teak, cedar, jarrah. Japanese and traditional styles. Full line of Spa covers, chemicals, parts etc.

Hanna Instruments, is a global manufacturer of water quality instrumentation and offers portable, laboratory and in-line instrumentation for testing water quality parameters.

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

Vernier Software & Technology produces hardware and software for data collection in high school, middle school, and college science courses including biology, chemistry, physics, physical science, water quality, middle school science, earth science, and math. Our products can collect data using both computers and graphing calculators. Vernier Software & Technology has been around since 1981 and prides itself on providing quality probeware for use in science classrooms.