Introducing the HKM-199379 Handheld Bluetooth Spirometer, an essential device for monitoring lung function with precision and ease. Designed for use in hospitals, clinics, and homes, this portable spirometer is your go-to solution for routine lung health assessments.

The HKM-199379 features a clear 2.8-inch color LCD display, providing real-time feedback on your lung health metrics. It measures essential indicators including Forced Vital Capacity (FVC), Forced Expiratory Volume (FEV1), and peak expiratory flow (PEF). This comprehensive device also gives insights into various flow measurements, such as FEF25, FEF50, FEF75, and the FEV1/FVC ratio, ensuring you have all the information you need at your fingertips.

Customization is straightforward with personal data entry for height, age, and sex, allowing the spirometer to offer tailored results. The device can store and review historical data, drawing engaging trend charts for a clearer understanding of your lung function over time. Plus, an easy-to-use one-button operation streamlines the testing process.

Connectivity is a breeze with Bluetooth or USB options for data transmission, making it easy to share results with healthcare professionals. Built-in features include health state indications, automatic calibration, and a battery power indicator, providing peace of mind during use. The spirometer will enter auto-shutdown mode after two minutes of inactivity, conserving battery life for future tests.

Lightweight and compact, the HKM-199379 measures just 160 mm long, 65 mm wide, and 45 mm high, and weighs only 190 g. It comes complete with user-friendly accessories such as a USB cable and a disposable mouthpiece.

Enhance your lung health monitoring experience with the HKM-199379 Handheld Bluetooth Spirometer—a reliable tool for informed health decisions.

Introduction
The SPIROMETER is a hand-held equipment for checking lung conditions, adopts the infrared signal acquisition mode for measuring items related to FVC, and it is applicable for hospital, clinic, family for routine test.

Functions
Forced Vital Capacity (FVC), forced expiratory volume in one second (FEV1) to forced vital capacity (FVC) ratio (FEV1/FVC), peak expiratory flow (PEF), forced expiratory flow at 25 % of FVC (FEF25), forced expiratory flow at 50 % of FVC (FEF50), forced expiratory flow at 75 % of FVC (FEF75) and forced expiratory flow from 25 %~ 75 % of FVC (FEF2575) can be measured;
The personnel information (including height, age, sex, etc.) can be set.
Flow-volume chart, volume-time chart display.
The data can be stored, deleted, uploaded and reviewed.
Trend chart display.
Health state indication.
Calibration function.
Over - limit prompt function for volume and flow.
Indicate expiration within 6 seconds by indicators.
Start measuring by one-button.
The data can be transmitted by Bluetooth or USB cable.
Real-time clock can be set and displayed.
Battery power indication.
Automatic shutdown when there is no operation within two minutes.

Performance
Display mode: 2.8\' LCD
Volume range: 0 ~ 10 L
Volume accuracy: ± 3 % or ± 0.05 L (whichever is greater)
Flow range: 0 L/s ~16 L/s
Flow accuracy: ± 5 % or ± 0.2 L/s (whichever is greater)
Working current: 200 mA
Power supply: rechargeable lithium battery
Safety class: internally powered equipment, type BF applied part

Accessories
One User Manual
One USB cable
One mouthpiece (disposable accessory)

Physical characteristic
Dimension: 160 mm (L) × 65 mm (W )× 45 mm (H)
Weight: 190 g