Description :Spirometer with 6, 000 spirometry test memory capacity, optional Oximeter with 1, 000 hours (40 days) oximetry recording. Bluetooth connection to printer or mobile phone.Main features :Internal temperature sensor for automatic BTPS conversionHigh resolution/high visibility graphic displayPatient identification by name or ID codeAutomatically records the best 3 trialsUSB cable, carrying case and software includedThe software is upgradable free of charge with product registrationOption: pulse oximeterSpecification :Size: 60x145x30 mmWeight 180 g128x64 pixel displayPC connection Via USB or RS232Measured parameters :FVC, FEV1, FEV1/FVC%, FEV6, FEV1/FEV6%, PEF, FEF25%, FEF50%, FEF75%, FEF25-75%, FET, Vext, FIVC, FIV1, FIV1/FIVC%, PIF, *FVC, *FEV1, *PEF, VC, IVC, IC, ERV, FEV1/VC%, VT, VE, Rf, ti, te, ti/t-tot, VT/ti, MVV (Best value)No calibration requiredPRE-POST bronchodilator comparisonSpirometry interpretation with test quality assuranceFlow sensor: bi-directional digital turbineFlow range: 16 L/sVolume accuracy: 3% or 50 mLFlow accuracy: 5% or 200 mL/sDynamic resistance at 12 L/s: L0.5 cmH20 L/sConnectivity and data transmission :USBBluetooth, wireless internal modem for acoustic coupling to telephone (telemedicine applications)Power Supply: 4 x 1.5 V, AAA batteryPC system requirements :Microsoft Windows Vista, 2000, ME, XP, 98 (2nd edition)