Contact us 
My Experiments 
Portable, Accurate, and Reliable Dissolved Oxygen Measurement
The Mettler-Toledo FiveGo™ F4 Handheld Dissolved Oxygen (DO) Meter is a high-precision, portable device designed for fast and accurate dissolved oxygen measurements in laboratory, field, and industrial applications. Equipped with the LE621-IP67 DO sensor, this meter delivers reliable performance with ±1% accuracy, making it ideal for environmental monitoring, wastewater treatment, aquaculture, and research applications.
Key Features & Benefits
✅ High Accuracy & Wide Measurement Range
- Dissolved Oxygen Concentration: 0.01 – 45.00 mg/L with ±1% accuracy.
- DO Saturation Range: 0.1 – 400%, ensuring precise oxygen level detection in various environments.
✅ Automatic & Manual Calibration
- Two-point calibration (0% and 100%) for maximum measurement reliability.
- Automatic Temperature Compensation (ATC & MTC) ensures stable readings in varying conditions.
✅ Portable & User-Friendly Design
- Lightweight (260g) and compact (188 × 77 × 33 mm) for easy handling in field and laboratory settings.
- Large 3.1" segmented LCD display for clear visibility of readings.
✅ Durable & Waterproof (IP67 Rated)
- Waterproof and dustproof design ensures rugged performance in harsh environments.
- Ideal for outdoor and on-site testing in wet or industrial conditions.
✅ Long Battery Life & Data Storage
- Powered by 4× AAA batteries, providing extended operational time.
- Data logging capacity of 200 measurements, allowing easy record-keeping for research and quality control.
Technical Specifications
| Feature | Details |
|---|---|
| Model | FiveGo™ F4 |
| DO Accuracy | ±1% |
| DO Concentration Range | 0.01 - 45.00 mg/L |
| DO Concentration Resolution | 0.01 mg/L |
| DO Saturation Range | 0.1 - 400% |
| Barometric Pressure Range | 375 - 825 mm Hg / 500 - 1100 mbar / 500 - 1100 hPa |
| DO Calibration | 2 points (0% and 100%) |
| Temperature Range | 0 to +50°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.3°C |
| Temperature Compensation | Automatic (ATC) & Manual (MTC) |
| Display | 3.1" segmented LCD |
| Connections | BNC, Cinch, NTC 30 kΩ |
| Power Supply | 4× AAA batteries |
| Data Logging Capacity | 200 measurements |
| Compliance | IP67 waterproof rating |
| Dimensions (W×D×H) | 188 × 77 × 33 mm |
| Weight | 0.26 kg |
Use Cases & Applications
1. Environmental Monitoring & Field Testing
Primary Use:
- Monitoring dissolved oxygen levels in lakes, rivers, and oceans.
- Assessing water quality in environmental research projects.
Practical Example:
An ecological research team uses the FiveGo™ F4 meter for in-field dissolved oxygen measurements in freshwater ecosystems, ensuring accurate environmental assessments.
2. Wastewater Treatment & Industrial Water Testing
Primary Use:
- Ensures compliance with regulatory dissolved oxygen standards.
- Monitors aeration efficiency in wastewater treatment plants.
Practical Example:
A wastewater facility uses the FiveGo™ F4 DO meter to measure oxygen levels in aeration tanks, optimizing biological treatment processes and ensuring regulatory compliance.
3. Aquaculture & Fisheries Management
Primary Use:
- Monitors oxygen levels in fish farms and aquaculture tanks.
- Prevents hypoxia-related fish stress and mortality.
Practical Example:
A commercial fish farm regularly uses the FiveGo™ F4 DO meter to monitor dissolved oxygen in fishponds, ensuring optimal oxygenation levels for healthy fish growth.
4. Laboratory & Biotech Research
Primary Use:
- Used in cell culture and fermentation studies.
- Supports scientific experiments requiring oxygen concentration analysis.
Practical Example:
A biotechnology lab uses the FiveGo™ F4 meter to measure oxygen levels in microbial fermentation for optimized cell growth and metabolite production.
5. Brewing & Beverage Industry
Primary Use:
- Ensures oxygen control in brewing and beverage production.
- Prevents oxidation and spoilage in beer and wine production.
Practical Example:
A brewing company uses the FiveGo™ F4 meter to measure dissolved oxygen in fermentation tanks, maintaining flavor consistency and shelf-life stability.
Why Choose the Mettler-Toledo FiveGo™ F4 DO Meter?
🌊 Highly Accurate DO Measurements – ±1% accuracy ensures precise dissolved oxygen readings.
🔬 Versatile & Multi-Industry Applications – Ideal for environmental, industrial, and research use.
⚡ Portable & User-Friendly Design – Lightweight, ergonomic, and intuitive for easy field or lab use.
🛡 Waterproof & Durable (IP67 Rated) – Designed for harsh conditions and outdoor applications.
📊 Data Logging for 200 Measurements – Supports quality control and research documentation.
The Mettler-Toledo FiveGo™ F4 Handheld Dissolved Oxygen Meter is a high-precision, portable, and durable solution for dissolved oxygen measurements in water quality analysis, environmental research, aquaculture, wastewater treatment, and laboratory applications. Its IP67 waterproof rating, user-friendly interface, and high accuracy make it an essential tool for professionals requiring reliable DO measurement in the field or lab.
No resources are currently available for this product.
Portable, Accurate, and Reliable Dissolved Oxygen Measurement
The Mettler-Toledo FiveGo™ F4 Handheld Dissolved Oxygen (DO) Meter is a high-precision, portable device designed for fast and accurate dissolved oxygen measurements in laboratory, field, and industrial applications. Equipped with the LE621-IP67 DO sensor, this meter delivers reliable performance with ±1% accuracy, making it ideal for environmental monitoring, wastewater treatment, aquaculture, and research applications.
Key Features & Benefits
✅ High Accuracy & Wide Measurement Range
- Dissolved Oxygen Concentration: 0.01 – 45.00 mg/L with ±1% accuracy.
- DO Saturation Range: 0.1 – 400%, ensuring precise oxygen level detection in various environments.
✅ Automatic & Manual Calibration
- Two-point calibration (0% and 100%) for maximum measurement reliability.
- Automatic Temperature Compensation (ATC & MTC) ensures stable readings in varying conditions.
✅ Portable & User-Friendly Design
- Lightweight (260g) and compact (188 × 77 × 33 mm) for easy handling in field and laboratory settings.
- Large 3.1" segmented LCD display for clear visibility of readings.
✅ Durable & Waterproof (IP67 Rated)
- Waterproof and dustproof design ensures rugged performance in harsh environments.
- Ideal for outdoor and on-site testing in wet or industrial conditions.
✅ Long Battery Life & Data Storage
- Powered by 4× AAA batteries, providing extended operational time.
- Data logging capacity of 200 measurements, allowing easy record-keeping for research and quality control.
Technical Specifications
| Feature | Details |
|---|---|
| Model | FiveGo™ F4 |
| DO Accuracy | ±1% |
| DO Concentration Range | 0.01 - 45.00 mg/L |
| DO Concentration Resolution | 0.01 mg/L |
| DO Saturation Range | 0.1 - 400% |
| Barometric Pressure Range | 375 - 825 mm Hg / 500 - 1100 mbar / 500 - 1100 hPa |
| DO Calibration | 2 points (0% and 100%) |
| Temperature Range | 0 to +50°C |
| Temperature Resolution | 0.1°C |
| Temperature Accuracy | ±0.3°C |
| Temperature Compensation | Automatic (ATC) & Manual (MTC) |
| Display | 3.1" segmented LCD |
| Connections | BNC, Cinch, NTC 30 kΩ |
| Power Supply | 4× AAA batteries |
| Data Logging Capacity | 200 measurements |
| Compliance | IP67 waterproof rating |
| Dimensions (W×D×H) | 188 × 77 × 33 mm |
| Weight | 0.26 kg |
Use Cases & Applications
1. Environmental Monitoring & Field Testing
Primary Use:
- Monitoring dissolved oxygen levels in lakes, rivers, and oceans.
- Assessing water quality in environmental research projects.
Practical Example:
An ecological research team uses the FiveGo™ F4 meter for in-field dissolved oxygen measurements in freshwater ecosystems, ensuring accurate environmental assessments.
2. Wastewater Treatment & Industrial Water Testing
Primary Use:
- Ensures compliance with regulatory dissolved oxygen standards.
- Monitors aeration efficiency in wastewater treatment plants.
Practical Example:
A wastewater facility uses the FiveGo™ F4 DO meter to measure oxygen levels in aeration tanks, optimizing biological treatment processes and ensuring regulatory compliance.
3. Aquaculture & Fisheries Management
Primary Use:
- Monitors oxygen levels in fish farms and aquaculture tanks.
- Prevents hypoxia-related fish stress and mortality.
Practical Example:
A commercial fish farm regularly uses the FiveGo™ F4 DO meter to monitor dissolved oxygen in fishponds, ensuring optimal oxygenation levels for healthy fish growth.
4. Laboratory & Biotech Research
Primary Use:
- Used in cell culture and fermentation studies.
- Supports scientific experiments requiring oxygen concentration analysis.
Practical Example:
A biotechnology lab uses the FiveGo™ F4 meter to measure oxygen levels in microbial fermentation for optimized cell growth and metabolite production.
5. Brewing & Beverage Industry
Primary Use:
- Ensures oxygen control in brewing and beverage production.
- Prevents oxidation and spoilage in beer and wine production.
Practical Example:
A brewing company uses the FiveGo™ F4 meter to measure dissolved oxygen in fermentation tanks, maintaining flavor consistency and shelf-life stability.
Why Choose the Mettler-Toledo FiveGo™ F4 DO Meter?
🌊 Highly Accurate DO Measurements – ±1% accuracy ensures precise dissolved oxygen readings.
🔬 Versatile & Multi-Industry Applications – Ideal for environmental, industrial, and research use.
⚡ Portable & User-Friendly Design – Lightweight, ergonomic, and intuitive for easy field or lab use.
🛡 Waterproof & Durable (IP67 Rated) – Designed for harsh conditions and outdoor applications.
📊 Data Logging for 200 Measurements – Supports quality control and research documentation.
The Mettler-Toledo FiveGo™ F4 Handheld Dissolved Oxygen Meter is a high-precision, portable, and durable solution for dissolved oxygen measurements in water quality analysis, environmental research, aquaculture, wastewater treatment, and laboratory applications. Its IP67 waterproof rating, user-friendly interface, and high accuracy make it an essential tool for professionals requiring reliable DO measurement in the field or lab.
No resources are currently available for this product.