Digital Peak Flow Meter Spirometer Asthma for Adult Kids Portable PEF Forced Expiratory Volume FEV1 Home Medical

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Regular Price: US$85.00

Special Price US$64.99

Availability: In stock

Supplier: Sonmol

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High accuracy: Adopt pressure differential principle enables this device the hospital-grade precision.

Automatically displays: LCD digital display the test results clearly

Good repeatability: Further calibration is not necessary after out of the factory.

No Additional parts: No further expense on the disposable mouthpieces.

Excellent structure design: Easy for your hands.

Easy to take: portable size and lightweight.

Age: Suitable for all ages above four.


Preparation 1.Press the Power button on. Stand or sit well and straight. Hold the peak flow meter. 2.Take a deep breathing, filling your lungs with air completely.	Measurement 1.Put the mouthpiece into your mouth, form a tight seal with your lips. Make sure the tube is not covered by your tongue or teeth. 2.Blow out as hard & fast as possible through the mouthpiece. 3.In a few seconds, you will get the measurement result from the screen. 4.Repeat the above steps to repeat your test.	Your readings and asthma dairy 1.Record and write down the highest number among three of your tests on the dairy chart.	Clean the device 1.Be sure to wipe and clean the mouthpiece by alcohol pad or other alcohol swab.Place it into the cardboard after use.

Power Supply	DC3V (2 AAA Alkaline batteries)
Display	Segment LCD
Measurement range	Volume:0.5L ~ 8L ;Flow rate:60L/min ~ 840 L/min
Accuracy	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/s
Flow Rate Frequency response	±12% or ±15L/min ( whichever is greater)
Weight	52g
Size	142x48x56mm