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
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