SUPPORT: Offline or call 1.800.522.1448
Mini-Wright Digital PEF and FEV1 Peak Flow Meter

Mini-Wright Digital PEF and FEV1 Peak Flow Meter

SKU: 45-3120

It has always been smart to carry a peak flow meter if your doctor prescribed it, but now you can carry the device that remembers your readings, so that you can keep track of them like your doctor recommended. The Mini-Wright Digital measures both PEF and FEV1 to help in managing asthma and COPD.

Free shipping on all purchases over $79.00
100% Money Back Guarantee

MSRP: $87.00
Sale Price: $69.99

In Stock - Usually ships
within 24 hours

This product provides relief from: Asthma

The Mini-Wright™ Digital PEF and FEV1 Peak Flow Monitor helps in the management of both asthma and COPD by measuring, not only peak expiratory flow (PEF), but also forced expiratory volume in 1 second (FEV1), which is the volume of air expelled in the first second after inhaling a deep breath. Both of these measurements reveal how well air is moving through your airways. Lower PEF and/or FEV1 levels indicate a narrowing of the airways.

The Mini-Wright Digital performs PEF and FEV1 measurements easily, intelligently and accurately at the touch of a button. The device remembers up to 240 of each of your readings, so that you can keep track of them like your doctor recommended. Plus, its zoning function helps to provide feedback on the state of your asthma at any one time based on your peak flow numbers. Easily customized, the Mini-Wright Digital ergonomically fits in the palm of your hand and features a water-tight seal for worry-free cleaning.  1-Year Manufacturer's Limited Warranty.

What Comes with the Mini-Wright™ Digital Peak Flow Meter?

  • Box contains one (1) Mini-Wright™ Digital Peak Flow Meter with lithium battery, one (1) reusable adapter,¹ instructions, and peak flow chart.


  • Provides accurate peak expiratory flow (PEF) and forced expiratory volume (FEV1) measurements
  • Measures PEF between 60‒850 L/min, and FEV1 between 0.6‒8.00 Liters (ATS scale)
  • Stores up to 240 PEF and 240 FEV1 readings for an electronic diary
  • Customizable zoning function helps you monitor the state of your asthma
  • Compact, ergonomic design with one-button operation
  • Water-tight seal for waterproof cleaning and sterilization
  • Meets ATS/ERS 2005 Standards
  • Single-patient use ²
  • Contained lithium coin battery (not rechargeable or replaceable), designed to last for 10,000-11,000 screenings
  • Replace unit every 2-3 years (or more often for multi-patient use)


¹ The included reusable adapter allows an Adult Disposable Mouthpiece to be attached to the device (or a Mini-Wright ribbed adapter can be attached to the device when a Pediatric Disposable Mouthpiece is required).
² The Mini-Wright™ Digital FEV1 Peak Flow Meter does NOT have a one-way valve, and is designed for single-patient use ONLY. It may also be used as a multi-patient use device with the use of a disposable mouthpiece, but the device will need to be cleaned between each user.

Specifications for Mini-Wright™ Digital PEF and FEV1 Peak Flow Meter

• Conformity: ATS94/2005 BS EN 13826
• Display: Liquid Crystal Display
• Dimensions: 4.5" H  x  1.7" W  x  1.1" D
• Weight: 2.1 oz  (54g)
• Accuracy: FEV1: ±3.5%, PEF: ±6%
(@25°F, 1013 mbar, 50% HR)
• Measurement Range: FEV1:  0.6-8.00 Liters
PEF:  60-850 L/min
• Resolution: FEV1:  0.05 Liter
PEF:  5 L/min
• Altitude Coefficient: 0.62% per 100 meters
• BTPS Coefficient: 3%  (values displayed by this device are shown as BTPS values)
• Max Resistance to Flow: 3.3 Kpa @ 800 L/min
• Zoning: Green/Yellow threshold:  80%
Yellow/Red threshold:  60%
• Memory: FEV1:  240 readings
PEF:  240 readings
• Operating Range: 60°F to 95°F  (15°C to 35°C)
• Storage: 14°F to 122°F  (‒10°C to 50°C)
• Indoor Humidity Range: 15% to 95% Relative Humidity (RH)
• Power: Lithium coin CR2032 3V (included; not changeable)
• Manufacturing Standard: ISO 9001 EN 13485

Directions for Use:

Please see the Owner's Manual tab for full instructions on using and cleaning the Mini-Wright™ Digital PEF and FEV1 Peak Flow Meter.


  • Remember to Keep Your Digital Peak Flow Meter Clean  

    • This device is designed for single-patient use. It is built to last for 2-3 years, with normal use, and providing the manufacturer's cleaning instructions are followed. The Digital Peak Flow Meter is waterproof so can be immersed in water for cleaning.

    • The device may be used by for multi-patient use by attaching a disposable mouthpiece. The device will need to be cleaned after each use. Healthcare professionals can refer to the manufacturer's cleaning and disinfecting instructions provided on the Owner's Manual tab or alternatively can contact Clement Clarke International Limited directly. Please see below for instructions on using disposable mouthpieces for multi-patient screenings.
  • Replacement
    • Replace the peak flow meter every 3 years, with regular use.
    • For multi-patient use, replace more frequently.
  • Multi-Patient Use
  • This device may be used by for multi-patient screenings. You will need the reusable adapter that came with the device. Fit the oval end of the adapter over the neck of the device. If you will be testing adults, simply insert an Adult Disposable Mouthpiece¹ into the adapter. If you will be testing children or patients with smaller mouths, you will need to use a Pediatric Disposable Mouthpiece,¹ which gets attached to the device in one of two ways, depending on which pediatric mouthpiece you are using:

    1. With a "one-way valve" expiratory Adult Disposable Mouthpiece ² you will additionally need a disposable Pediatric/Small Mouth Adapter³ (Mini-Wright part # 3122220).
    2. With a "through and through" type Pediatric Disposal Mouthpiece¹ you will additionally need a reusable Ribbed Adapter ³ (Mini-Wright part # 3105027).


    ¹ The "through and through" Adult and Pediatric Disposal Mouthpieces are available through National Allergy Supply.
    ² We apologize, but we do not carry the "one-way valve" expiratory Adult Disposable Mouthpiece (Mini-Wright part # 3122064).
    ³ We apologize, but we do not carry the disposable Pediatric/Small Mouth Adapter (Mini-Wright part # 3122220) or the reusable Ribbed Adapter (Mini-Wright part # 3105027).

Reimbursement Information:

Below, for your convenience, please find the Part #, Description, and NHRIC/NDC and CPT/HCPCS Codes for this device. For information about Medicare and Medicaid reimbursement, please visit For information about reimbursement from private health plans, please contact your health insurer or plan administrator.

Part # Description NHRIC / NDC Code CPT / HCPCS Code
3103104 Mini-Wright Standard Peak Flow Meter 3 8462103104 0 A4614
3122064 One-Way Valve EXP Mouthpieces 3 8462122064 2
3122220 Pediatric/Small Mouth disposable adaptor 3 8462122220 2

Click here to view the Owner's Manual for the Mini-Wright™ Digital PEF and FEV1 Peak Flow Meter.

Click here to view the manufacturer's instructions for Cleaning and Disinfecting the Mini-Wright™ Digital PEF and FEV1 Peak Flow Meter.


Rated 4.00 out of 5 based on 1 review.

Powered by

Overall, I liked this product. Super Easy to Use. Only drawback for me is the mouthpiece is a little too large when on, but when taken off the device is too small itself making it a little more tricky to blow into it to get an accurate reading.

Other people have also looked at: