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Contec SP90 Digital Bluetooth Pulmonary Function Multiparameter Spirometer Introduction: SP90 pulmonary function tester is a hand-held pulmonary function test equipment, which can be used to detect the patient's respiratory function status; it adopts the principle of differential pressure collection to perform forced vital capacity FVC, vital capacity SVC, maximum minute ventilation MVV, and resting minute ventilation MV items Measurement of related parameters; TFThigh-definition screen can display measurement results and respiratory waveforms; data upload can be realized, which is convenient for cloud management operations; suitable for diagnosis and curative effect of lung diseases such as asthma, chronic obstructive pulmonary disease, pulmonary fibrosis and cough Assessment, routine physical examination, etc. It is mostly used in respiratory medicine, thoracic, anesthesiology, surgery, occupational disease prevention and treatment institutions, physical examination institutions and other scenarios. Features 1) It can measure and display the related test items of forced vital capacity FVC, vital capacity SVC, maximum minute ventilation MVV, and resting minute ventilation MV; 2) It can display and measure the breathing waveform, and cooperate with the host computer to realize real-time testing; 3) It has the management function of user information and case data; 4) Built-in a variety of expected values, which can display the ratio of the measured value to the expected value; 5) With BTPS self-correction function, automatic measurement of environmental parameters; 6) Support bronchial test; 7) With voice prompts; 8) Calibration function and verification to ensure test accuracy; 9) Data transmission can be realized, with two options of Bluetooth and data cable; 10) One-key quick start test function; 11) Lithium battery power supply, rechargeable, with battery power indicator; Performance: Capacity range: 0 ~ 10 L Flow rate range: ±16 L/s Capacity accuracy: ±3% or ±0.05 L (whichever is greater) Flow rate accuracy: ±5% or ±0.17L/s (whichever is greater) Physical properties: Dimensions: 143mm (length) × 64mm (width) × 41mm (height) Weight: 220g Package included: 1X User Manual 1X Nose clip 1X Mouthpiece (disposable accessory) 1X Data line 1XPower adapter (optional)