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OHAUSHandheld Dissolved Oxygen Meters

OHAUS Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.01 mg/L

The OHAUS ST400D-G is a handheld dissolved oxygen meter that measures DO concentration up to 200% with a resolution of 0.01 mg/L and accuracy of ±0.2 mg/L. It also provides temperature accuracy of 0.3° C and includes…

SKU 3G-OTH-380816

Also listed as: ST400DG · ST400D G

Brand
OHAUS
Item
Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.01 mg/L
Category
Handheld Dissolved Oxygen Meters
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

OHAUS
Manufacturer Part Number
ST400D-G
Type
200% DO Concentration - Max, 0.01 mg/L, ±0.2 mg/L
Includes
(4) AAA Batteries
DO Accuracy
±0.2 mg/L
DO Resolution
0.01 mg/L
Temp Accuracy
0.3° C

Technical Documents

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OHAUS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OHAUS ST400D-G is a handheld dissolved oxygen meter that measures DO concentration up to 200% with a resolution of 0.01 mg/L and accuracy of ±0.2 mg/L. It also provides temperature accuracy of 0.3° C and includes (4) AAA batteries for operation.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the OHAUS ST400D-G dissolved oxygen meter used for?

The OHAUS ST400D-G is a handheld meter used to measure dissolved oxygen concentration in water, ideal for wastewater treatment, aquaculture, and environmental monitoring. It provides readings up to 200% DO with 0.01 mg/L resolution and ±0.2 mg/L accuracy, plus temperature measurement with 0.3° C accuracy.

What are the specifications of the OHAUS ST400D-G?

The OHAUS ST400D-G measures dissolved oxygen up to 200% concentration with 0.01 mg/L resolution and ±0.2 mg/L accuracy. Temperature accuracy is 0.3° C. It includes (4) AAA batteries for operation. The manufacturer part number is ST400D-G.

Where to buy the OHAUS ST400D-G worldwide?

3G Electric supplies the OHAUS ST400D-G dissolved oxygen meter to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source genuine OHAUS instruments for global industrial and laboratory applications.

How to calibrate the OHAUS ST400D-G dissolved oxygen meter?

Calibrate the OHAUS ST400D-G using a two-point method: first in water-saturated air (100% saturation) and then in a zero-oxygen solution (e.g., sodium sulfite). Follow the meter's menu prompts. Always use fresh calibration standards and rinse the probe between steps for accurate ±0.2 mg/L readings.

Used in

Common applications for OHAUS
Pharmaceutical quality control — OHAUS Defender 5000 bench scale for raw material weighing with RS-485 data logging
Environmental water testing — OHAUS ST300D-B handheld dissolved oxygen meter for field DO and temperature measurement
Food processing — OHAUS CX1201 portable balance for portion control and ingredient weighing in dry environments
Laboratory sample preparation — OHAUS modular dry bath block for heating 15 mL tubes in molecular biology protocols
Industrial production — OHAUS D33P75B1R1 bench scale with RS-232 for checkweighing in packaging lines
Histology lab — OHAUS stainless steel tube rack for slide staining and sample organization

OHAUS Products

3G Electric supplies OHAUS handheld dissolved oxygen meters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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