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Nice color blindness book with nice illustrations for testing and demonstrating color blindness. Both numbers and figures appear in the book.
Text in both Chinese and English.
Easily measure heart rate before, during, and after exercise with the data transmitted wirelessly to your devices.
The Wireless CO₂ Sensor measures carbon dioxide gas levels and wirelessly streams data to your computers, tablets, and smartphones.
Clear PVC Venturi Tube with a constriction and two pressure ports with tubing attached, for use in a pipe network.
Model, measure and understand complex density driven circulation associated with heat transfer through convection.
A hands-free option for measuring heart rate before, during, and after physical activity.
This is a Bluetooth, handheld science datalogger that lets students connect multiple wired and wireless sensors, collect data, generate live graphs, and perform data analysis.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
Vials contain a vacuum-sealed color forming reagent to test a variety of water quality parameters. 30 individual Total Hardness test vials.
Measures the water content of soil and reports it in percent. For use with PASPORT Interfaces.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Alkalinity test vials.
