MAIN FEATURES:

• 3 inch color screen with friendly Ul.
• The unique high-precision filter system makes the instrument more stable and accurate.
• Direct reading of concentration, automatic power-off.
• With built-in standard curve. Users can build curves according to different requirements.
• Support up to 7-point calibration (new curve creation). Support restoring factory calibration data.
• With large-capacity storage of 5000 sets of test data.
• Rechargable battery can last for 10 hours. Auto power-off time can be set.