Offering the best quotes for your research!

New and used scientific instruments

🚚 Shipping Worldwide 🌎

📞+31 (0) 73 7114717

✉️ info@questpair.com

Loading...

OR

Ohaus DO Meter ST400D with Optical Technology for Dissolved Oxygen Measurement

item image


Product Description

  • Measurement Range: 0.00 – 20.0 mg/L (ppm) dissolved oxygen; 0 – 50 °C temperature
  • Accuracy: ±0.2 mg/L (<8 mg/L), ±0.3 mg/L (8–20 mg/L) dissolved oxygen; ±0.3 °C temperature
  • Resolution: 0.01 mg/L DO; 0.1 °C temperature; 0.1% display resolution
  • Display: Color LCD graphics
  • Electrode: STDO21 galvanic electrode (included), optical technology enables immediate use after power-on
  • Calibration: 2-point calibration; automatic and manual endpoints with easy recall of last calibration data
  • Temperature Compensation: Automatic using 10 KΩ NTC sensor
  • Power: 4 AAA (LR03) batteries included; approximately 12 hours battery life
  • Dimensions: 1.38 in × 5.91 in × 3.54 in (35 mm × 150 mm × 90 mm)
  • Weight: 0.35 lb (0.16 kg)
  • Operating Environment: 5°C – 40°C, 80% RH, non-condensing (41°F – 104°F)
  • Additional Features: Quick measurement delivery, simple calibration, no wait time for electrode activation, does not include in-use cover.

Item Stats

Status
For Sale
State
used
Brand
Ohaus
Model
Ohaus DO Meter ST400D
Location
Sanford - United States
Category

Product details

Measurement Range0.00 – 20.0 mg/L(ppm); 0 – 50 °C
Accuracy±0.2 mg/L(< 8 mg/L) or ±0.3 mg/L(8~20 mg/L); ±0.3 °C
Measurement Resolution0.01 mg/L; 0.1 °C; 0.1%
DisplayColor LCD Graphics
ElectrodeSTDO21 (Included)
Accuracy DO0.2 ppm
Accuracy ± (Temperature)0.3 °C
Battery Life12 hours with Disposable Batteries
Calibration2 Point
Dimensions (HxLxW)1.38 in x 5.91 in x 3.54 in (35 mm x 150 mm x 90 mm)
In-use coverNo
Measurement Range DO0 ppm – 20 ppm
Measurement Range (Temperature)0 °C – 50 °C
Net Weight0.35 lb (0.16 kg)
ParameterDissolved Oxygen
Power4 AAA (LR03) Batteries (Included)
Resolution (DO)0.01
Temperature CompensationAutomatic
Temperature Resolution0.1 °C
Temperature Sensor10 KΩ NTC
Working Environment41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

Documents


About QuestPair

Our Mission

QuestPair is Europe's leading platform for scientific equipment, connecting researchers and organizations with verified suppliers of both new and pre-owned laboratory instruments in the biotech and material science industry. Our aim is to make the procurement of scientific instruments more efficient, cost-effective, and reliable, so that laboratories can focus on advancing science rather than searching equipment and negotiating deals.

Why Choose Us

Founded by scientists for scientists, we understand your challenges. Our AI-powered platform offers transparent pricing, verified quality, and expert support, ensuring you find the perfect equipment for your research needs.

Verified Quality

Every piece of equipment undergoes thorough verification by our expert team, ensuring reliability and performance.

Cost Efficiency

Access both new and premium pre-owned equipment, saving up to 40% without compromising on quality.

Expert Support

Our dedicated team provides personalized guidance throughout your equipment procurement journey.

Ready to Transform Your Research?

Join thousands of biotech scientists who trust QuestPair for their equipment needs.


What customers think about QuestPair

Brilliant service. Everything arrived and was exactly as expected

Jon Welburn

Great customer service! Got me great options for the equipment I was looking for and in a timely manner.

Pamela
Space Lab Technologies, LLC

Harm is very responsive to help me find the right equipment. The product I received is in a good condition.

Ph.D. Hsin-Wen Liang
Northeastern University

From €1,666.08*ex. VAT

In Stock

Get a quote within one business day
Verified equipment
Trusted warranties & returns
Safe payment and fast delivery

Didn't find what you're looking for?

Our sales team specializes in sourcing custom and hard-to-find products to meet your exact specifications. Submit a request for a tailored quote.


Frequently Asked Questions

Is this equipment new or refurbished?
How long does shipping take?
What about warranty and returns?
Why request a quote?
Need help choosing the right tool?

Policy Information
As we work with various trusted suppliers, each product comes with specific warranty and return policies. Rather than providing generic information, we prefer to discuss these details personally with you to ensure:
  • Accurate policy information specific to your chosen product
  • Clear understanding of warranty coverage and terms
  • Detailed return policy explanation
  • Transparent shipping options and costs
Contact us by requesting a quote for detailed information about this product's warranty and return policy. We're here to provide you with fast, accurate, and personalized assistance.

Disclaimer: QuestPair assumes no responsibility or liability for any errors or omissions in the content of this site. The information contained in this site is provided and presented on an "as is" basis with no guarantees of completeness, accuracy, usefulness or timeliness.

*The shown price was automatically converted and may not reflect the final price on the quote as it does not include conversion costs.

Customer Service

Here to help you with: Product Inquiries, Shipping & Support, Technical Support, Business Inquiries and Press.

We are available to assist you Mon-Fri, 10am - 5pm CET.

+31 (0) 73 7114717
info@questpair.com