Ohaus Starter 400D DO Portable Meter
✅ FREE SHIPPING: Australia wide — Yes, even remote areas.
Processing Time: 1 - 3 business days.
Delivery Time: Up to 7 business days for metro areas.
Up to 7 - 14 business days for all other areas.
✅ Return Policy: 30 Day Returns.
✅ Need help? Call us on 1300 812 450
Ohaus Starter 400D DO Portable Meter - Product Description
Advanced Optical Technology for Hassle-Free DO Measurement
The Ohaus Starter 400D DO Portable Meter delivers high-performance dissolved oxygen measurement with innovative optical technology that eliminates the maintenance hassles of traditional membrane-based DO probes. Leveraging over a century of OHAUS measurement expertise, the ST400D provides immediate, accurate readings without warm-up time or sample preparation, making it the ideal solution for professionals who need reliable DO data in field and laboratory environments. The optical probe technology requires minimal maintenance while delivering consistent accuracy across a measurement range of 0.00 to 20.0 mg/L (ppm), with precision of ±0.2 mg/L for readings below 8 mg/L.
Rugged Field-Ready Design with Intelligent Data Management
Designed for practical field use, the ST400D features a large backlit color LCD screen that ensures easy readability even in low-light conditions, while the durable IP54-rated ABS housing protects against dust and water splashes. The meter includes convenient accessories such as a meter stand and wrist strap for secure handling during field work. Powered by four AAA batteries providing 12 hours of continuous operation, the ST400D offers automatic temperature compensation with manual salinity adjustment and auto barometric pressure measurement for enhanced accuracy. The built-in 99-measurement memory library stores data for future reference, and one-touch recall of the last calibration data simplifies quality control procedures in the field.
Key Features:
- One Year Warranty for piece of mind.
- Optical DO Technology - Advanced optical sensor eliminates membrane maintenance and provides instant readings without warm-up time or sample preparation.
- Low Maintenance Design - Optical probe requires minimal upkeep compared to traditional electrochemical DO sensors, reducing downtime and operational costs.
- High Accuracy Performance - Delivers ±0.2 mg/L accuracy for readings below 8 mg/L and ±0.3 mg/L for 8-20 mg/L range, with ±0.3°C temperature accuracy.
- Large Backlit Color LCD - Easy-to-read color graphics display ensures excellent visibility in all lighting conditions, including challenging field environments.
- Durable IP54 Housing - Dust and splash-resistant ABS construction protects the meter during field use in various environmental conditions.
- 99-Measurement Memory - Built-in data storage library allows you to save and review measurement data for documentation and trend analysis.
- One-Touch Calibration Recall - Quickly access the last calibration data to verify meter performance and maintain quality assurance protocols.
- Automatic Compensation Features - Auto temperature compensation and auto barometric pressure measurement with manual salinity adjustment ensure accurate DO readings.
- Portable Battery Operation - Runs on four standard AAA batteries (included) providing 12 hours of continuous use for extended field sessions.
- Complete Field Kit - Includes meter stand and wrist strap for secure, hands-free operation during sampling and testing procedures.
Applications:
The Starter 400D is ideal for:
- Environmental water quality monitoring.
- Aquaculture and fisheries management.
- Wastewater treatment process control.
- Stream and lake ecological studies.
- Laboratory dissolved oxygen analysis.
- Field research and educational applications.

Need Help? Call 1300 812 450
Specifications
Specifications for the Ohaus Starter 400D DO Portable Meter


Need Help? Call 1300 812 450
Downloads
Ohaus Starter 400D Portable DO Meter Manual PDF
Owner's Manual:
Ohaus Starter 400D Portable DO Meter Manual PDF
Product Datasheet: