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SDI Diagnostics' Astra spirometers use highly accurate AccuFlo™ bidirectional digital turbine with an optoelectronic rotary sensor and sapphire bearings. AccuFlo™ relies on a unique flow trigger algorithm to allow tidal breathing prioer to an expiratory maneuver, increasing patient comfort while ensuring accurate, quality results.
In addition to all the latest features, the Astra 300 Spirometer has a built-in a touch screen with an on-screen alphanumeric keyboard.
All Astra Spirometers come with a padded high-impact plastic carrying case. Compare features of Astra 100, Astra 200, and Astra 300 Spirometers in the Description tab.
| Astra 100 | Astra 200 | Astra 300 | |
|---|---|---|---|
| Parameters | FVC, FEV1, FEV6, FEV1/FVC, FEV1/FEV6, PEF | FVC, FEV.5, FEV1, FEV3, FEV6, FEV1/FVC, FEV1/FEV6, FEV.5/FVC,
FEV3/FVC, PEF, FEF25, FEF50, FEF75, FEF25-75, FEF 75-85, FET,
FEV1/FEV.5, FEV1/PEF, MIF50, FIVC, FIV1, FIV1/FVC, FEV1/FIV1,PIF,
MTT, PEV/PIF, Lung Age. MVV: Br/min VC: VC, TV, ERV, IRV, IC, Ti, Te, Tt, Ti/Tt |
FVC, FEV.5, FEV1, FEV3, FEV6, FEV1/FVC, FEV1/FEV6, FEV.5/FVC,
FEV3/FVC, PEF, FEF25, FEF50, FEF75, FEF25-75, FEF 75-85, FET,
FEV1/FEV.5, FEV1/PEF, MIF50, FIVC, FIV1, FIV1/FVC, FEV1/FIV1,PIF,
MTT, PEV/PIF, Lung Age MVV: Br/min VC: VC, TV, ERV, IRV, IC, Ti, Te, Tt, Ti/Tt |
| Maneuvers per patient | N/A | 5 total; best test and last test highlighted | 5 total; best test and last test highlighted |
| Predicted set | Hankinson (NHANES III) | Selectable — 14 Total | Selectable — 14 Total |
| Interpretation | Ferguson (NLHEP) | Selectable — Kory, Miller, ATS, NLHEP (Ferguson) | Selectable — Kory, Miller, ATS, NLHEP (Ferguson) |
| Ethnic correction | Caucasian/Hispanic/AfroAmerican | Selectable — % Actual, Caucasian, Hispanic, AfroAmerican | Selectable — % Actual, Caucasian, Hispanic, AfroAmerican |
| Language | N/A | Selectable — English or Spanish | Selectable — English or Spanish |
| Hardware Specifications | |||
| Keyboard | 5 Keys | 5 Keys | Alphanumeric LCD touchscreen |
| Communication port | USB to printer | USB to printer and PC, RS232 Optional: Bluetooth to PC | USB to printer and PC, RS232 Optional: Bluetooth to PC |
| Printer | PCL6 Drivers via USB | PCL6 Drivers via USB | PCL6 Drivers via USB |
| Dimensions | 5.75" x 3.25" x 4.0" | 5.75" x 3.25" x 4.0" | 5.75" x 3.25" x 4.0" |
| Weight | 9 oz (250 g) | 9 oz (250 g) | 9 oz (250 g) |
| Power Supply | 2 x 1.5 DC Alkaline or NiMH batteries | 2 x 1.5 DC Alkaline or NiMH batteries | 2 x 1.5 DC Alkaline or NiMH batteries |
| Storage | >150 studies | >150 studies | 1000+ studies |
| Precision of Measurements (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 | 50 Hz | ||
| 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 | ||
