Availability: In Stock

Electronic Asthma Monitor

The Vitalograph asma-1™ is a simple home use electronic respiratory monitor that measures PEF and FEV1 and may be integrated with smart phone or tablet for ePRO data collection. It offers greater accuracy than mechanical peak flow meters and eliminates the need for paper record cards.


  • Measures PEF and FEV1
  • FEV1 has less diurnal variability and is less effort dependent than PEF
  • Displays % of personal best for both PEF and FEV1
  • PEF and FEV1 zones can be personalised
  • Automatically assesses test quality
  • Automatically stores best values
  • Large, easy to read display
  • Stores 600 test sessions
  • Suitable for use in clinic with Vitalograph Bacterial Viral Filters (eco BVF)
  • Uses long life AAA batteries
  • Language independent
  • Child version measures PEF, FEV0.5, FEV0.75 and FEV1


Product Vitalograph asma-1
Model Number 4000
Part Number 40000, 40400, 40300, 40050
Description Vitalograph asma-1, Vitalograph asma-1 USB, Vitalograph asma-1 Bluetooth, Vitalograph asma-1 Serial
Size 113 x 63 x 48mm
Weight 55g net
Parameters Displayed (Adult version) PEF & FEV1
Parameters Displayed (Child version) PEF, FEV0.5, FEV0.75 and FEV1
Operating Temperature Range 17 – 37°C
Measuring Principle Stator/rotor mass flow meter
Flow / Volume Range PEF: 25 – 840 L/min BTPS
FEV1: 0 – 9.99 L BTPS
Accuracy FEV1 better than +/-5% or +/-100ml (whichever is greater)
PEF better than +/-10% or +/-25L/min (whichever is greater)
Repeatability Better than 5% or 10L/min, whichever is greater
Cleaning Alcohol wipe, especially the mouthpiece, weekly
Disposal Methods Recycle
Performance standard ISO 23747:2007; ATS/ERS 2005
Safety Standards IEC 60601-1:2005
Medical Safety Standards Medical Devices Directive 2007/47/EC; ISO 13485:2003
Designed and manufactured under CMDR
FDA 21CFR820


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