This user-friendly lung model shows in a very clear way what happens when we breathe in and out.
With a quick pull on the plastic membrane, which represents the diaphragm muscle, the pressure in the bell is reduced and air is sucked into the two lung-shaped bags, which represent the lungs.
Release the diaphragm and the pressure on the “lungs” increases and the air is forced out.
A hands-free option for measuring heart rate before, during, and after physical activity.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
The PASPORT Salinity Sensor works with the included Salinity Sensor Probe to measure salinity, conductivity and temperature.
Vials contain a vacuum-sealed, color forming reagent for testing a variety of water quality parameters. 30 individual carbon dioxide 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 Total Hardness test vials.
Vials contain a vacuum sealed color forming reagent to test a variety of water quality parameters. 30 individual Alkalinity test vials.
Allows students to explore the rate of water movement and quantify pressure changes occurring in the system.
Allows students to measure temperature by detecting emitted infrared from objects without contact. For use with PASPORT Interfaces.
3 interconnectable polycarbonate chambers for building your own ecosystems. Designed to easily integrate sensors for quantitative environmental measurements.
