lung monitor BT Smart

Handheld device with Bluetooth connectivity, for remote lung function monitoring

Handheld device for remote Lung Function monitoring of chronic respiratory conditions such as COPD, cystic fibrosis, & post-transplant patients.  Ideal for monitoring FEV1, FEV6 and FEV1/FEV6 ratio at home, at work, within clinical trials, and in primary and secondary care.


Ease of integration, Immediate Results

  • Captures & transmits data to healthcare professionals from devices operating Apple iOS™,  Android™, Philips 2Net™ & Windows® Applications via Bluetooth®.
  • Dual mode Bluetooth.


Supporting Telemedicine & Telehealth providers’ digital healthcare platforms

  • Software Developers’ Kit* is available to providers of telehealth and e-Diary solutions for ease of integration.
  • Integration support via dedicated support team.


One of our 4000 Series of respiratory monitors and screeners, the lung monitor BT Smart comes with:

  • Pouch
  • Instructions for use
  • 2 x AA Batteries
  • Plastic mouthpiece for single patient use


Get certified device training via our online training resource SpiroTutor™ by Vitalograph® which is available 24/7. We provide one FREE enrollment with the registration of your monitor.  A training certificate is issued upon completion.


*Developers Kit is sold separately and does not include device.

The Bluetooth® word, mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Vitalograph is under license. Android is a trademark of Google LLC. Windows is a trademark of Microsoft Inc. Other trademarks and trade names are those of their respective owners.


Product Code: 9880


  • Parameters: FEV1, FEV6, FEV1 / FEV6 ratio, FEV**, FEV1 / FEV ratio, FEF25-75, FEV0.75, PEF
  • API software developers’ kit* available.
  • Dual mode Bluetooth.
  • Results direct to compatible Apps.
  • Sends data after each blow.
  • Large, easy to read display.
  • Automatically stores best values in a test session.
  • Quality of blow indicator.
  • Displays % of personal best FEV1.
  • Set unique ‘personal best’ zones for test subjects
  • 600 test memory.
  • Test with or without the use of an App.
  • Suitable for use with Bacterial Viral Filters (BVF™) providing 99.999% cross-contamination efficiency.


*Developers Kit is sold separately and does not include device.
**FEV – Forced Expiratory Volume (up to 10 seconds). May be used as a surrogate for FVC.

Respiratory Monitor lung monitor BT Smart
Model 4000
Dimensions 109mm (length) x 63mm (width) x 42mm (height)
Flow Detection Principal Stator rotor
Accuracy Better than ± 2.5% (FEV1, FEV), ± 10% (PEF, FEF25-75)
Measurement Range PEF: 25 – 840 L/min BTPS FEF25-75: 25 – 840 L/min BTPS FEV1, FEV: 0 – 9.99 L BTPS
Maximum Test Duration 10 seconds
Power Supply 2 x 1.5V AAA batteries
Expected Battery Life 3 months of use at 3 tests per day
Performance Standards & Guidelines ATS/ERS 2019, ISO 23747:2015, ISO 26782:2009
QA/GMP standards EN ISO 13485, FDA 21 CFR 820, MDSAP.
Communications Dual mode Bluetooth LE4.0 and 2.1
Auto Power Down Time 2 minutes

Product Specification

micro BT Smart lung monitor BT Smart lung monitor USB lung monitor asma-1
FEF 25-75
FEV 0.5
FEV 0.75
Post BD
Total Parameters Available 8 (of 48) 8 4 3 2
Quality Measures: 
Predicted Values
Personal Best Zones
Quality Prompts
Data Exchange: 
Software Developers Kit* (SDK) Connectivity
General Features:
Touch Screen
Colour Display
Internal Battery
Memory (Test Sessions) 750 600 200 200 600
SDK Data Exchange Compatibility: 

*Developers Kit is sold separately and does not include device.

**FEV – Forced Expiratory Volume (up to 10 seconds). May be used as a surrogate for FVC.


No personal information such as patient demographics are entered or stored on the device.

Yes. A BVF is recommended if the lung monitor BT Smart is intended for in clinic use. The plastic mouthpiece supplied with the device can be used where the device is intended for single-patient use. For patient groups with excessive sputum production, a BVF can be used to protect the device flowhead from exhaled particulate matter where this may be a concern.

(!) appears after a blow if a cough is detected in the 1st second.

If a new BVF is used for every test and the lung monitor BT Smart is stored in a clean, dust free environment, then the device should require only surface cleaning using a 70% isopropyl alcohol wipe. Full instructions available at 4000 Series Cleaning Instructions.

The lung monitor BT Smart needs a supporting App to connect to a phone or tablet. If you have installed an App that supports the lung monitor BT Smart, please contact your App provider to check compatibility with your phone/tablet make and model.


Talk to Us

For information on any of our products, click the inquiry button, enter your query and we will get back to you.

Contact Us

Would you like to learn more or contact one of our team? If you have a question on any of our products or would like to learn more about our services, please contact us.