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Vitalograph Asma-1 Electronic Asthma Monitor

 Vitalograph 4000 Lung Function Monitor USB
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By measuring FEV1, as well as peak flow, the asma-1 gives a clearer picture of lung health. The asma-1 stores up to 600 test sessions and automatically assesses test quality.


  • Simple to use
  • Electronic record – no need for record cards
  • Automatically assesses test quality
  • More accurate than a mechanical meter
  • Patient can review past results at home
  • Measures PEF and FEV₁
  • Child version measures PEF, FEV₁, FEV₀.₅ and FEV₀.₇₅
  • FEV₁ has less diurnal variability and is less effort dependent
  • Can display % of personal best for both PEF and FEV₁
  • PEF and FEV₁ zones can be personalised
  • Automatically stores best values 
  • Large, easy to read display
  • Stores 600 test sessions
  • Suitable for use in clinic with SafeTway® mouthpieces
  • Easy to clean mouthpiece and flowhead
  • Language independent 
  • ISO 23747:2007 Peak Flow Meters ATS/ERS: 2005 Spirometry Guidelines ISO 26782:2009 Spirometers


Measurements PEF and FEV₁
Memory 600 PEF and FEV₁
Accuracy FEV₁ better than +/-3% or +/-100ml (whichever is greater) PEF better than +/-5% or +/-25L/min (whichever is greater)
Range Volume FEV₁ 0.4 - 9.99 L BTPS
Range Flow PEF 25 – 840 L/min
Flow Impedance Better than 0.15 kPa/L/s at 14 L/s
Power Supply 2 AAA batteries
Dimensions 113 x 63 x 48mm
Weight 55g