Wireless Ventilation Sensor Redy

Quick Answer: The Redy wireless ventilation sensor measures the flow of air as a person breathes through it and logs the data wirelessly, so breathing volumes and rates can be graphed. The wireless ventilation sensor is a teaching tool for physiology lessons, not a medical spirometer or diagnostic device.

Breathing Made Visible

A ventilation sensor works like a simple spirometer: air breathed in and out passes through a flow head, the flow rate is measured, and the software adds it up over time to give volume. Each breath appears on the trace as a wave, and students can read off tidal volume at rest, breathing rate and the larger volumes they can move when breathing as deeply as possible.

Its classroom value lies in comparisons. Traces taken before and after a few minutes of stepping show how ventilation rises with exercise and how quickly it recovers, and different students’ traces show natural variation. Results must not be treated as a health check: teaching sensors are not validated as medical instruments, and any concern about breathing belongs with a doctor.

The title does not describe the flow-head design, the mouthpiece and filter arrangement or the measuring range. For heart rate during the same exercise, see the optical heart rate monitor.

Applications

• Measuring tidal volume and breathing rate at rest
• Comparing ventilation before and after exercise
• Showing the difference between quiet and deep breathing
• Linking breathing traces to lung structure in human biology lessons

Care & Handling

• Give each student a new or disinfected mouthpiece, and use a filter where the design has one.
• Clean the flow head as the maker instructs, and never immerse the electronics.
• Students who feel unwell, or who have breathing difficulties, should not attempt forced-breathing tests.
• Use a nose clip if needed so that all breath passes through the sensor.

Specifications

Why Choose LabEquip

Biology and physical education departments teaching human physiology are the typical buyers. This sensor sits in LabEquip’s chemistry lab equipment range; mouthpieces and filters can be discussed through the contact page.

Frequently Asked Questions

Is the ventilation sensor a medical spirometer?

No. It is a teaching sensor for demonstrating breathing in physiology lessons. It is not intended for diagnosis, and its readings must not be used to judge anyone’s lung health.

What is tidal volume?

Tidal volume is the volume of air breathed in or out in one normal, relaxed breath. On the trace it is the height of each wave during quiet breathing.

How is hygiene managed when students share the sensor?

Each student should use their own disposable mouthpiece, or one that has been cleaned and disinfected, with a filter where the design allows. Never pass a used mouthpiece to another person.

Why does breathing rate increase after exercise?

Working muscles use more oxygen and produce more carbon dioxide. Rising carbon dioxide in the blood stimulates deeper and faster breathing until levels return to normal.

Why do some traces drift upward or downward?

Small leaks around the mouthpiece, breathing through the nose or a flow offset can make the calculated volume drift. Use a nose clip, seal the lips around the mouthpiece and zero the sensor before recording.

Who should not take part in deep-breathing tests?

Anyone who feels dizzy, or who has a breathing condition, should not do forced or repeated deep breaths. Stop the test at once if a student feels light-headed.

Last Updated: September 2026