Astra BT Spirometer from SDI Diagnsotics includes 50 Filters

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Introducing the Astra BT Wireless Spirometer, Compatible with Astra PRO Software.

Includes 50 AstraGuard Filters

True Hand-Held BT Spirometry! No cables and no worries. Works with PC's, Laptops, or tablets that are running Windows™.

Simplicity With Comprehensive Spirometry.

  • Powered by two AAA batteries

  • Ergonomic handle includes:

    • Visual connectivity indicator

    • Integrated temperature sensor

    • Lanyard

  • Power save mode

  • Transmit and share data and results with your EMR system

  • Meets ATS standards

  • NIOSH (National Institute for Occupational Safety and Health) Compliant

  • Simultaneous F/V and V/T graphs

Windows 10 compatible

Meets ATS standards

Niosh compliant

Simultaneous F/V and V/T graphs

Over 45 parameters

QC programming

Patient database selection

Auto diagnostic selection

Multiple incentive screens

Power: Two-AAA Batteries

Ergonomic handle makes it easy to hold

Visual Power/connectivity indicator

Temperature Sensor integrated handle

Power-saver mode


Pre/Post FVC Tests with Flow-Volume Loops.


AstraPro™ Software

Choose either Pre- and Post-bronchodilator and bronchial challenge testing or use the incentive program with your pediatric patients or adults. The Astra BT communicates with AstraPro wirelessly via Bluetooth.


Forced Parameters Measured
Forced vital capacity: FVC, FEV1, FEV1/FVC, PEF, FEF50%, FEV6, FEV1/FEC, PEF,
FEF25-75%, FEV6, FEV1/ FEV0.5, PEFT, Vext, FIVC, FIF50%, FEF50/FIF50,
QC Grades, FEV3, FEV0.5, FEV0.5/FVC, FEV3/FVC, FEV1/VC, FEV1/FEV6,
FEV1/PEF, FEV1/FIV1, PEF/PIF, FEV25%, FEF25%, FEF75%, FEF75-85%,
FET25-75%, FET100, FIV1, FIV1/FVC, PIF, MTT, MVV Ind, Lung age

MVV: MVV, Br./min

Bronchoconstriction: FVC, FEV1, PEF, FEF25-75%, PDX

Relaxed Parameters Measured
VC: VC, TV, ERV, IRV, IC, Ti, Te, Tt, Ti/Tt
Maneuvers per patient: 8 Total; Best test and last test highlighted
Interpretation: Selectable – Kory, Miller, ATS, NLHEP (Ferguson)
Predicted sets: Selectable – 20 Total
Ethnic correction: Selectable – % Actual, Caucasian, Hispanic, African-American
Language: Selectable – English, Spanish or French

Measurement Scale (BTPS)
Flow range 0–16 L/sec
Volume 0–10 L
Measurement method: Infrared Interruption via Digital Turbine
Dynamic flow resistance: <1.5 cm H20/L/sec @ 14 L/sec

Measurement Precision (BTPS)
At highest volume: +/- 3% or 50 ml
At highest flow: +/- 5% or 150 ml
Time related precision: 0.5%
Volume resolution: <6 ml
Sampling frequency: 100 Hz


What is Included?


Spirometer with Lanyard


Quick Start Card/PDF

Software/Manual/PDF Program on CD

10 AstraGuard Filters

10 Kushion Klip nose clips

24 Months with return of enclosed warranty card