Product Content:

This model is waterproof, impact-proof and shock-proof. Even if you accidentally drop it, encounter water, or shake your fingers while testing, it still works well.
Definitely the best finger oximeter ever made.

Features:
- Small and lightweight, very easy to carry and use
- LCD display with backlight display
- Smart fingertip probe with automatic finger detection and automatic power on/off function
- Accurately measure SpO2
- Accurate measurement of PR (Pulse Rate)
- PI (Perfusion index, perfusion index) display
- Beep alarm to indicate abnormal readings
- Uses 2 AAA alkaline batteries