Spirometry Measurements: VC, FEV0.75, FEV1, FEV3, FEV6, FVC, PEF FEV0.75/VC, FEV0.75/FVC, FEV1/VC, FEV1/FVC, FEV3/VC, FEV3/FVC, FEV0.75/FEV6, FEV1/FEV6, MEF75, MEF50, MEF25, MEF25-75, FEF50/VC, FEF50FVC, MVVind, FET, MET, IC, FIV1, FIVC, PIF, FIV1,/FIVC, FIF25, FIF50, FIF75, FIF50/MEF50,VT, ERV, IRV [all expiratory measurements with baseline, post bronchodilator 1 and 2, % predicted, % change and normal range] Tests per subject: VC-unlimited (best reported) FVC-unlimited (best 3 from baseline, post 1 and post 2 tests) Predicted Values: Knudson, Crapo or NHANES III Transducer: Micro Direct Gold Standard Bi-Directional Digital Volume Resolution: 10ml volume 0.03l/s flow Accuracy: +/-3%.To ATS recommendations – Standardisation of spirometry 1994 update for flows and volumes General Storage: 1000 patients’ tests including Flow/Volume loops and Volume/Time curves Printer Output: 320 dot internal thermal printer, or serial output for all IBM Proprinter compatible Canon bubble jet printers e.g. BJC250, BJC4400, BJC80 and BJC50, and all PLC3 compatible Hewlett Packard printers e.g. Deskjet 420, 695, 340, 880C and 895Cxi Display: High resolution graphic LCD 240 x 160 pixels Power Supply: 100 – 240V 0.3A 47 – 63Hz. DC output 9V 0.8A Battery Pack: Rechargeable NiCad 7.2V 600mA/hours Dimensions: 6" x 10" x 1.5".Transducer 2"x 2"x 3.5" Weight: Unit weight 1 lb 10 oz. Packed weight 5 lb 10 oz. Temperature: 32 to +104 F Operating Humidity: 30% to 90% RH Storage Temperature: 0 to +158 F Storage Humidity: 10% to 90% RH