Variable Load, used in conjunction with the Energy Sensor to provide a range of resistive loads for projects such as wind turbines or solar panels, Students can adjust the potentiometer to provide resistances between 6 and 255 ohm
Mouthpiece, Disposable, For a more sterile environment, use the cardboard mouthpieces to help eliminate the spreading of contagious material between students
Disposable Bacterial Filter, disposable microbacterial filter significantly reduces need to sterilize your spirometers flow head, 30 mm ID opening allows for an easy, air-tight fit to the flow head
Noseclip, plastic, foam-padded noseclips help increase the accuracy of spirometry results by eliminating the escape of air through the nostrils during testing