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Accurate dissolved oxygen (DO) measurement remains a critical challenge across various applications, from rigorous laboratory research to demanding field monitoring, aquaculture operations, and wastewater treatment facilities. Traditional methods often prove time-consuming and susceptible to environmental interference, yielding questionable results.

The FiveGo™ portable dissolved oxygen meters combine ergonomic design with operational simplicity, making them ideal for users prioritizing efficiency and convenience. These rugged instruments feature waterproof construction capable of withstanding challenging wet environments while delivering reliable measurements.

Key features include:

• Intuitive operation requiring minimal training
• Comfortable grip design for extended use
• IP67 waterproof rating for wet environment operation
• 200-measurement internal memory capacity
• 200+ hours of continuous operation per charge

F4 (Basic Model): Economical solution focused on core dissolved oxygen measurement capabilities.

• Measurement range: 0.1-400% (oxygen saturation); 0.01-45.00 mg/L (DO concentration)
• Resolution: 0.1% (oxygen saturation); 0.01 mg/L (DO concentration)

F4-FIELD (Field Model): Designed for outdoor applications with included LE621 electrode.

• Measurement range: 0.1-400% (oxygen saturation); 0.01-45.00 mg/L (DO concentration)
• Includes LE621 electrode

F4-KIT (Complete Kit): Comprehensive solution with LE621 electrode and accessories.

• Measurement range: 0.1-400% (oxygen saturation); 0.01-45.00 mg/L (DO concentration)
• Includes LE621 electrode

For applications demanding higher precision, data management, and instrument intelligence, the Seven2Go™ series offers enhanced capabilities while maintaining portability and ease of use.

S4 Seven2Go™ (Standard Model): Professional-grade portable meter capable of simultaneous pH/ORP, conductivity, and dissolved oxygen measurement.

• T-Pad™ interface for intuitive navigation
• IP67 waterproof/dustproof rating
• ISM Light sensor management
• 200-measurement memory
• 1-year warranty

S9 Seven2Go™ Pro (Advanced Model): Flagship model with expanded measurement capabilities including ion selective electrode (ISE) functionality.

• High-visibility daylight-readable display
• Full ISM sensor management
• 2,000 GLP-compliant measurement records
• Calibration reminders
• Audible/visual measurement endpoint indication
• PIN code protection
• Micro USB data interface
• Timestamp functionality
• 1-year warranty

Mettler Toledo's portable dissolved oxygen meters provide solutions ranging from basic economical models to advanced professional instruments. These tools bring scientific precision to field applications, enhancing the efficiency and reliability of water quality monitoring across diverse environments and applications.