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🌬️ Breathe Better, Live Smarter — Your Personal Lung Health Tracker
The Digital Peak Flow Meter by Nascool is a compact, highly accurate spirometer designed for home use by adults and children over 6. Featuring a pressure differential sensor that meets ATS ERS WRIGHT standards, it delivers reliable PEF and FEV1 measurements without calibration. Its portable design is easy to clean and perfect for travel. The included asthma diary app supports manual symptom and medication tracking, empowering users to manage respiratory health proactively.





| Best Sellers Rank | #3,744 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Flowmeters |
| Customer Reviews | 4.3 out of 5 stars 635 Reviews |
M**H
Good product
Nice thing to have to keep eye on asthma. Works as expected.
W**D
Great compact device!
As a respiratory therapist, I've used a number of peak flow meters- this one is amazing and great for home use. Small, easy to use and no moving parts. It's easily cleaned and stored, with an easy to read screen. Perfect for travel and carrying to work or school.
N**E
Great for the Price
My doctor recommended I get a peak flow monitor due to my asthma issues. This monitor works great for the price. It beeps kind of loudly when you turn it on and it beeps when it automatically turns off. Unfortunately you can’t turn it off with the power button (it only turns the device on) but since it shuts off automatically after not using, there’s no issues with battery life. You can set up the device phone app to feed into your Apple health data which is great.
D**Y
Easy & accurate.
Easy to set up and appears accurate.
A**R
Just a good peak flow meter
Works fine
P**R
Good price and reads well
works as expected. setup was a breeze but the app is pretty basic don't expect much out of it. Make sure what ever you buy is not just wifi but also automatically transfers the data. there are many others that have a low price but are manual and the descriptions are deceiving
P**O
Excelente Compra, lo recomiendo 100%
Lo Compré porque es más fácil de utilizar para mi Madre de 87 años y tiene una condición pulmonar y hay que darle terapias. Yo había comprado uno en una Farmacia que resultó ser un poco difícil y dificultoso para ella y este es completamente muy manejable para ella y también para poder guardar sus resultados. Cómodo, Práctico, Útil, Buen Precio y Eficaz. Llegó super a tiempo.
J**S
Peak Flow Meter
The product is easy to use and instructions are easily understood.
A**A
device wrong results
i have bought this device for my son he has asthma,It is showing always wrong results and i have tried so many times to connect to my phone but cannot find my phone.... i dont know i think its a waste of money and time i will try to return this device
V**.
Muy bien medidor
Excelente aparato, descargué la app y aunque no se puede conectar x Bluetooth pones la medición y sirve muy bien
Trustpilot
3 days ago
3 weeks ago