Spirometer SP70B

• Measured parameters: PEF, PVC, FEV1, FEV1%, targeted test, directional analysis.
• Indicate whether the teseted result is good or bad by built-in expected value formula.
•2.4" monochrome segment screen, low power consumption.
• Fashion design, easy to use and portable, available to test at any time
• Large storage capacity, up to 9999 groups of cases can be stored.
• Data transmission Mode: Bluetooth
• "AAA" Dry Battery, Convenient for installing/uninstalling.