The Vernier of Ion-Selective Electrodes are great for monitoring four environmentally-important ions: Calcium (Ca2+), Chloride (Cl-), Ammonium (NH4+) and Nitrate (NO3-). Learn more at http://www.vernier.com/ise/

About Us: We are a science education company dedicated to providing high-quality solutions for today’s STEM classrooms. Our comprehensive solutions include hardware, software, content, assessment, professional development, and technical support. Learn more at vernier.com.

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