--- product_id: 376110138 title: "Digital Peak Flow Meter Spirometer Asthma for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Home Medical" brand: "sonmol" price: "$166.31" currency: USD in_stock: true reviews_count: 5 category: "Sonmol" url: https://www.desertcart.us/products/376110138-digital-peak-flow-meter-spirometer-asthma-for-adult-kids-portable store_origin: US region: United States of America --- # 52g ultra-portable design ±3% volume accuracy PEF & FEV1 data tracking app Digital Peak Flow Meter Spirometer Asthma for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Home Medical **Brand:** sonmol **Price:** $166.31 **Availability:** ✅ In Stock ## Summary > 🌬️ Breathe Better, Live Smarter — Your Lung Health, In Your Hands ## Quick Answers - **What is this?** Digital Peak Flow Meter Spirometer Asthma for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Home Medical by sonmol - **How much does it cost?** $166.31 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/376110138-digital-peak-flow-meter-spirometer-asthma-for-adult-kids-portable) ## Best For - sonmol enthusiasts ## Why This Product - Trusted sonmol brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Dual Parameter Tracking:** Measures both Peak Expiratory Flow (PEF) and Forced Expiratory Volume (FEV1) for comprehensive respiratory insights. - • **Precision You Can Trust:** Differential pressure sensor ensures ±3% volume accuracy for reliable lung function monitoring. - • **Pocket-Sized Portability:** Lightweight 52g design fits discreetly in your bag or pocket—test your lungs anytime, anywhere. - • **Seamless Data Management:** Compatible with PEF app to log, track, and share your lung health progress effortlessly. - • **Family-Friendly & Versatile:** Ideal for adults and kids with asthma, COPD, or smokers seeking proactive respiratory care. ## Overview The Sonmol Digital Peak Flow Meter SMPF-1 is a high-precision spirometer designed for adults and kids to monitor lung function at home. Featuring a differential pressure sensor with ±3% volume accuracy, it measures key respiratory parameters PEF and FEV1. Its lightweight, compact design (52g) ensures portability, while the clear LCD display and compatible PEF app enable easy tracking and management of asthma and COPD symptoms. Trusted by thousands, it empowers proactive respiratory health management anytime, anywhere. ## Description Digital Peak Flow Meter Spirometer Asthma for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Home Medica Item specification:Model:SMPF-1Power Supply:DC3V (2 AAA Alkaline batteries)Display:Segment LCDTest method:Pressure SensorMeasurement range:Volume:0.5L~8L;Flow rate:60L/min~ 840 L/minAccuracy:Volume:±3％ or ±0.05L (whichever is greater);Flow rate:±10％ or ±18L/min ( whichever is greater)Linearity:Volume:±3％;Flow rate:≤ 5％Repeatability:Volume:±3% or ±0.05L of reading ( whichever is greater);Flow rate:±5% or ±10 L/min of reading ( whichever is greater)Airflow resistance:0.35 kPa/L/sFlow Rate Frequency response:±12％ or ±15L/min ( whichever is greater)Weight:52gSize:142x48x56mmFeature:High accuracy: Adopt pressure differential principle,excellent structure design,high precision and good repeatabilityAutomatically displays test values:LCD segment code LCD digital display test results clearlySuitable for all ages above 4Track your lungs function at homeEasily washed and cleaned for repeated useSelf-manage your condition to prevent acute exacerbation and unnecessary hospital visitsWho should use this device:Persons with respiratory symptoms,asthma，chronic obstructive pulmonary disease,smokersWarrty:Using in a single patient to avoid cross-infectionPlease use it in an environment with good ventilation, no pollution and no harmful gasesIf you have a severe attack of asthma and have obvious difficulty breathing, you should not use it againHow to use1.Stand up straight, keep your head naturally or slightly up and hold both sides of the peak flow meter with both hands. 2.Take a deep breath, filling your lungs completely.Place your lips tightly around the mouthpiece. Blow as hard and as fast as you can with a single breath. Review: I originally got the more expensive newer version but returned it when could not find the app on the Apple App store. Found out later it is shown as PEF app when you do the search they suggest and is below the one for a PDF app which is strange. But ordered this instead and prefer it. Why? Because it can be tricky to get the correct readings on these devices and you can simply enter the average reading you get in the app. But if bluetooth it would add in ones that are not accurate. This way you control the input and it is not that hard to do. So the PEF app works well for this model, better in my view. I am getting different readings from the Omron device but both are bit tricky to get correct readings. Still I find both useful. I am doing this not for usual reasons. I am doing the Breather Fit exercises which show my PEV to be those expected for half my age. I wanted to see what improvement is shown and find these devices useful for that purpose. I do find the chart function very helpful on the PEF app and can e mail that to share with doctors etc. Can also set the expected values either from doctor or per the estimate from several app choices. Can recommend both this and the Omron devices for those wanting to measure their peak flow. Review: Excelente espirometro, lo necesité para uso académico y probar otros sensores y me fue muy útil ## Features - High Accuracy: Adopt differential pressure transducer, excellent structure design, high precision and good repeatability - Measures two parameters and APP tracks: PEFand FEV1. You can input your data which showson display to manage your asthma attack - Automatically Displays Test Values: Electronic digtal peak flow meter with LCD, the Value can be dispaly clearly andscreen, quickly. - Mini Size and lightweight: Portable peak flowmeter, can be put in your pocket or bag, all it takes is a one second blow to check your lung function when and where you want. - Suitable for: Adults or Kids with respiratory symptoms, asthma, chronic obstructive pulmonary disease, smokers. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B088R59HMQ | | ASIN | B088R59HMQ | | Age Range Description | Adult; Kid | | Brand | Sonmol | | Customer Reviews | 4.2 4.2 out of 5 stars (748) | | Customer reviews | 4.2 4.2 out of 5 stars (748) | | Date First Available | 10 January 2021 | | Item model number | SMPF-1 | | Manufacturer | Sonmol | | Product Dimensions | 5 x 6.3 x 16 cm; 52 g | | Units | 1 Count | ## Product Details - **Brand:** Sonmol - **Item dimensions L x W x H:** 50 x 63 x 160 millimeters - **Item weight:** 0.11 Pounds - **Product benefits:** high accuracy peak flow meter spirometer - **Specific uses for product:** Asthma ## Images ![Digital Peak Flow Meter Spirometer Asthma for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Home Medical - Image 1](https://m.media-amazon.com/images/I/61AGh1tI8EL.jpg) ## Questions & Answers **Q: Why do the test values vary significantly?** A: Usage methods and physical conditions can affect the results. Airflow blockage may cause PEF deviations. 1. Not inhaling deeply or exhaling forcefully and correctly 2. Respiratory muscle fatigue 3. Leakage from the mouth or nose **Q: How to avoid noticeable deviation test value among each tests?** A: 1. Stand or sit upright before testing. 2. Take a deep breath in 3. Exhale forcefully and as quickly as possible 4. Seal the mouthpiece tightly 5. Take a short break between tests to avoid fatigue and ensure accurate results **Q: Why can't l connect to Bluetooth?** A: This item not with bluetooth function, app for manually recrod on it **Q: Why there is no arrow to indicate red, yellow and green areas?** A: Please check if you have set the expected PEF value. No arrow will be displayed on the device without properly setting the expected value. Suggestion: If you don't know how to set the expected value, please follow the instruction. **Q: If the device can't display the values properly/ shows E1** A: Please restart the peak flow to have a try. If you still have any problem please get in touch with us ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by P***3 on 3 September 2023* I originally got the more expensive newer version but returned it when could not find the app on the Apple App store. Found out later it is shown as PEF app when you do the search they suggest and is below the one for a PDF app which is strange. But ordered this instead and prefer it. Why? Because it can be tricky to get the correct readings on these devices and you can simply enter the average reading you get in the app. But if bluetooth it would add in ones that are not accurate. This way you control the input and it is not that hard to do. So the PEF app works well for this model, better in my view. I am getting different readings from the Omron device but both are bit tricky to get correct readings. Still I find both useful. I am doing this not for usual reasons. I am doing the Breather Fit exercises which show my PEV to be those expected for half my age. I wanted to see what improvement is shown and find these devices useful for that purpose. I do find the chart function very helpful on the PEF app and can e mail that to share with doctors etc. Can also set the expected values either from doctor or per the estimate from several app choices. Can recommend both this and the Omron devices for those wanting to measure their peak flow. ### ⭐⭐⭐⭐⭐ Review *by M***. on 8 August 2022* Excelente espirometro, lo necesité para uso académico y probar otros sensores y me fue muy útil ### ⭐⭐⭐⭐⭐ Review *by K***E on 14 September 2025* I’m really impressed with the Sonmol Portable Digital Peak Flow Meter. It’s compact and lightweight, so it’s easy to carry in a bag or even keep in a pocket. The digital display is clear and easy to read, which makes tracking both PEF and FEV1 simple for both adults and children. Setup was quick, and the instructions were straightforward – I was able to use it right away without any hassle. The readings feel reliable and consistent, giving me peace of mind about monitoring my lung health at home. I also appreciate that it has CE certification, which makes it feel more trustworthy and medical-grade compared to cheaper alternatives. For the price, this device offers excellent value. It saves me trips to the clinic for basic monitoring and makes it easy to keep a record of results over time. ✅ Easy to use ✅ Clear, accurate readings ✅ Suitable for adults and children ✅ Compact and portable ✅ Great price for medical-level quality Highly recommended for anyone who wants a reliable, affordable way to monitor their respiratory health at home! ## Frequently Bought Together - Sonmol Digital Peak Flow Meter Spirometer Asthma COPD for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Lung Tester Home Medical - Upgrade Spirometer with Risk Indicator & 300 Records Storage, Portable Peak Flow Meter with Tracking App and Bluetooth Tests PEF & FEV1, Asthma COPD & Other Lung Conditions Monitor for Kids Adults - Incentive Spirometer Adult, Breathing Exercise Device for Lungs, Deep Breathing Trainer for Adults - 5000ml Volume Measurement with Flow Rate Indicator --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/376110138-digital-peak-flow-meter-spirometer-asthma-for-adult-kids-portable](https://www.desertcart.us/products/376110138-digital-peak-flow-meter-spirometer-asthma-for-adult-kids-portable) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-16*