Sonmol Digital Bluetooth Peak Flow Meter
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Bluetooth Peak Flow Meter
Designed for individuals undergoing pulmonary rehabilitation, tracking lung health, managing asthma or COPD, and supporting structured peak flow monitoring
Digital PEF & FEV1 Measurement
Functions as an expiratory flow meter, supporting lung capacity tests, asthma monitoring, COPD monitoring, and routine lung health assessment with measurable airflow data
Bluetooth Tracking & Memory Storage
Syncs with a mobile app to monitor respiratory performance and track treatment progress. Built-in memory stores up to 300 readings for reviewing performance over time
Suitable for Multiple Respiratory Needs
Ideal for athletes monitoring breathing performance, asthma patients managing peak flow levels, COPD individuals tracking lung function, exercise-focused users strengthening respiratory capacity, and oxygen users observing airway performance under medical guidance
Portable & Rechargeable Design
Compact and lightweight, suitable for home lung testing, travel, and workplace respiratory checks — no disposable batteries needed
Accuracy & Measurement Performance
Delivers reliable measurement with volume accuracy of ±2.5% and flow rate accuracy of ±10%, across a range of Volume: 0.5L–8L and Flow Rate: 60L/min–840L/min
Color Risk Indicator Display
A clear PEF and FEV1 risk indicator system categorizes readings into Green (Normal ≥80%), Yellow (Moderate 50–80%), and Red (Severe <50%) zones for PEF, while FEV1 values identify Normal, Mild, Moderate, or Severe obstruction levels
- Provides real-time, at-home lung function testing without a clinic visit
- Helps track asthma or COPD progression through consistent historical data
- Supports structured asthma action plans under medical guidance
- Suitable for a wide range of users — athletes, asthma patients, COPD individuals, and general respiratory monitoring
- Simple one-touch operation with ergonomic, comfortable grip
- Useful for pulmonary rehabilitation and ongoing respiratory care routines
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1
Power On
Press the home button to turn on the device — "Go" appears on screen, indicating it's ready
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2
Position the Mouthpiece
Take a deep breath and seal your lips fully around the mouthpiece for accurate airflow measurement
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3
Hold Correctly
Don't block the mouthpiece with your tongue or cover the rear air outlet with your hand — this affects reading accuracy
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4
Blow & Measure
Blow out as fast as possible. After two beeps, your result displays automatically
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5
Repeat & Record
Press the home button to repeat the test twice, and record the highest value as your final result
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6
Power Off
Press and hold the home button for about 3 seconds to switch off
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7
Download the App
Install the Sonmol PEF app via Google Play or by scanning the QR code
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8
Allow Permissions
Enable required permissions for nearby device connection
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9
Pair & Sync
Keep the device on, open the app, select your device to connect, and sync your readings for storage and tracking
- Anytime you're managing asthma, COPD, or want to establish a baseline for lung health
- Use Daily or as advised by your doctor, for consistent trend tracking
- Especially useful during symptom flare-ups, before/after exercise, or before/after inhaler use to monitor treatment response
- Suitable for: Asthma patients, COPD individuals, athletes, exercise-focused users, and oxygen users, under medical guidance
- Set your correct expected value in the app to ensure accurate Green/Yellow/Red zone indication and proper data tracking
Questions, Answered
Before you begin
What does this Peak Flow Meter measure?
It measures Peak Expiratory Flow (PEF) and Forced Expiratory Volume (FEV1), key indicators of lung function and airway performance
How many readings can it store?
Built-in memory stores up to 300 readings for reviewing historical trends.
Does it connect to a mobile app?
Yes — it syncs via Bluetooth to the Sonmol PEF app for structured tracking and long-term monitoring
Is this suitable for children?
The package includes 2 mouthpieces to support use across different age groups — consult your doctor for age-appropriate use guidance
How accurate is this device?
It offers volume accuracy of ±2.5% and flow rate accuracy of ±10%, with a measuring range of Volume: 0.5L–8L and Flow Rate: 60L/min–840L/min
What do the color zones mean?
Green indicates Normal (≥80%), Yellow indicates Moderate (50–80%), and Red indicates Severe (<50%) for PEF readings
Is this rechargeable?
Yes — it's a rechargeable device, eliminating the need for disposable batteries
Can this help manage asthma or COPD?
Yes — regular tracking supports structured asthma action plans and COPD monitoring, ideally under medical guidance
How do I take an accurate reading?
Seal your lips fully around the mouthpiece, avoid blocking it with your tongue or covering the air outlet, then blow out as fast as possible
Where can I purchase this product?
You can order it directly from b-arm.com, or through Amazon and Flipkart
Questions, Answered
Before you begin.
At B-Arm Medical Technologies Pvt. Ltd., our purpose is to make healthcare more accessible and effective by
offering reliable, user-friendly solutions that address everyday medical and wellness needs.
Yes, most of our products come with a 1-2-year warranty. Warranty details vary by product and are available on
the respective product detail pages or through our support team.
We accept multiple secure payment options including Net Banking, Debit & Credit Cards, and UPI to ensure a
smooth and hassle-free checkout experience for our customers.
We accept return, replacement, or refund requests within 7 days of delivery. Refunds are processed within 6-7
working days after receiving the returned product. Exchanges are provided based on product availability. All
returns must comply with our return condition guidelines.
Absolutely. Our team is happy to help customers select the most suitable product based on their needs. They can
reach out to us via phone or email for personalized assistance.
Yes, most of our products come with usage instructions or manuals. If further clarification is needed, our team is
always available to guide customers step-by-step.
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