Instructions:
A medical spirograph device that evaluates, monitors, and reminds asthmatic and COPD sufferers how well their lungs worked.
Application:Upgraded Digital Peak Flow Meter for Asthma Adult, Kids w/Green LCD Display, Home Spirometer Testing Device with Bluetooth APP for Smart Asthma Monitoring
Features:
1.【Upgraded home electronic Bluetooth spirometer】 – Uses air pressure sensor technology for accurate and reliable readings, offers Bluetooth capability to transfer data to your device to help you monitor your lung condition at home at any time.
2.【Easy to read】 – Quick 1-second readings after exhalation without waiting and a large backlit LCD screen for clearer data display.
3.【Ease of use】 – The device is light enough to take on the go, with a frosted texture body and sensitive buttons. Comes with a replaceable ABS heat resistant mouthpiece that is easy to clean and disinfect.
4.【Easy to track your asthma】 – The device can automatically record up to 300 readings and can automatically define your readings into red, yellow and blue zones for better management of your condition, as well as generating an asthma log on the app to export pictures or tables of your data trends to send to your doctor.
5.【Instrument packages】 – A peak flow meter, an instruction manual for the device and instructions on how to connect to our app, and two washable mouthpieces for your convenience.
Features for the Lung Spirometer
1.No further calibration is required as the device has been automatically calibrated
2.Assist in early detection of acute asthma attacks.
3.Two parameters of PEF and FEV1 display on LCD screen only after a blow
4.Pressure differential sensor applied ensures the high accuracy.
5.ATS ERS WRIGHT standards provided.
6.Easy to clean and disinfect.
7.High repeatability, no calibration is needed after manufactured.
8.Peak Flow and FEV1 monitoring for asthma, COPD & other lung diseases
9.Washable Mouthpiece and Washable Wind Tube – The wind-tube and mouth-pieces are removable for easier cleaning, reconnect fully and blow to take measurements
Technical Specification:
1.Re-chargeable:USB-Type C
2.Washable two mouthpieces:Round & elliptical 
3.Record time and readings:Save 300 pages of data
4.Bluetooth provided:Easy to trackdata & export diary via
phone app
Physical Identity:
Product Size:5*5*12cm
Product Weight:0.13kg
Package Size:6*7*18.8cm 
Package Weight:0.2kg

Package included:
1X SMPF-2S Spirometer 
2X Mouthpieces
1X User Manual