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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.
This bundle expands on the Starter Bundle and includes an Optical Dissolved Oxygen Sensor, a Colorimeter, and more.
Clear PVC Venturi Tube with a constriction and two pressure ports with tubing attached, for use in a pipe network.
Vials contain a vacuum-sealed color forming reagent to test a variety of water quality parameters. 30 individual Total Hardness test vials.
This small plastic bottle is designed to allow simultaneous sensor measurements of oxygen gas and carbon dioxide gas.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Ammonia test vials.
Designed to be placed in air or water flow. When connected to the General Flow Sensor, aids in measuring pressure differences.
Allows students to measure temperature by detecting emitted infrared from objects without contact. For use with PASPORT Interfaces.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
