We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

OHAUS Dissolved Oxygen Meter: Dissolved Oxygen/Temp, 400% DO Concentration - Max - Handheld Dissolved Oxygen Meters
OHAUSHandheld Dissolved Oxygen Meters

OHAUS Dissolved Oxygen Meter: Dissolved Oxygen/Temp, 400% DO Concentration - Max

The OHAUS ST300D-B is a handheld dissolved oxygen meter that measures DO concentration up to 400% with ±1% accuracy and 1% resolution, plus temperature with 0.3°C accuracy. It includes (4) AAA batteries for operation.

SKU 3G-OTH-380788

Also listed as: ST300DB · ST300D B

Brand
OHAUS
Item
Dissolved Oxygen Meter: Dissolved Oxygen/Temp, 400% DO Concentration - Max
Category
Handheld Dissolved Oxygen Meters
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
ST300D-B
Type
400% DO Concentration - Max, ±1% DO Accuracy
Includes
(4) AAA Batteries
DO Accuracy
±1%
DO Resolution
1%
Temp Accuracy
0.3°C

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OHAUS ST300D-B is a handheld dissolved oxygen meter that measures DO concentration up to 400% with ±1% accuracy and 1% resolution, plus temperature with 0.3°C accuracy. It 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 ST300D-B dissolved oxygen meter used for?

The OHAUS ST300D-B is a handheld meter for measuring dissolved oxygen concentration in water, up to 400% saturation, with ±1% accuracy. It is used in wastewater treatment, aquaculture, environmental monitoring, and laboratory testing to assess water quality and oxygen levels.

What are the specifications of the OHAUS ST300D-B?

The OHAUS ST300D-B measures dissolved oxygen concentration up to 400% with ±1% accuracy and 1% resolution. Temperature accuracy is 0.3°C. It includes (4) AAA batteries. The manufacturer part number is ST300D-B.

Where to buy the OHAUS ST300D-B worldwide?

You can source the OHAUS ST300D-B through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to calibrate the OHAUS ST300D-B dissolved oxygen meter?

To calibrate the OHAUS ST300D-B, perform a one-point calibration in water-saturated air or a zero-point calibration using a sodium sulfite solution. Follow the manufacturer's instructions for probe preparation and ensure stable readings before confirming calibration.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
OHAUS Conductivity Meter: Conductivity/Total Dissolved Solids, ±0.5% FS, 199.9 mS/cm, 0 mS/cm (MPN ST300C-B)
OHAUS
OHAUS Conductivity Meter: Conductivity/Total Dissolved Solids, ±0.5% FS, 199.9 mS/cm, 0 mS/cm (MPN ST300C-B)
OHAUS Conductivity Meter: Conductivity/Total Dissolved Solids, ±0.5% FS, 199.9 mS/cm, 0 mS/cm (MPN ST300C)
OHAUS
OHAUS Conductivity Meter: Conductivity/Total Dissolved Solids, ±0.5% FS, 199.9 mS/cm, 0 mS/cm (MPN ST300C)
OHAUS Conductivity Meter: Conductivity/Total Dissolved Solids, ±0.5% FS, 199.9 mS/cm, 0 mS/cm (MPN ST300C-G)
OHAUS
OHAUS Conductivity Meter: Conductivity/Total Dissolved Solids, ±0.5% FS, 199.9 mS/cm, 0 mS/cm (MPN ST300C-G)
OHAUS pH Meter: Millivolt/pH/Temp, Electrodes Sold Separately, Reagents Sold Separately, ±0.01 pH (MPN ST300-B)
OHAUS
OHAUS pH Meter: Millivolt/pH/Temp, Electrodes Sold Separately, Reagents Sold Separately, ±0.01 pH (MPN ST300-B)
OHAUS pH Meter: Millivolt/pH/Temp, Electrodes Sold Separately, Reagents Sold Separately, ±0.01 pH (MPN ST300-G)
OHAUS
OHAUS pH Meter: Millivolt/pH/Temp, Electrodes Sold Separately, Reagents Sold Separately, ±0.01 pH (MPN ST300-G)
HACH Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.1, 0°C – 60°C, Digital (MPN LEV015.53.11301)
HACH
HACH Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.1, 0°C – 60°C, Digital (MPN LEV015.53.11301)

More from OHAUS

View all OHAUS parts
OHAUS Dissolved Oxygen Meter: Dissolved Oxygen/Temp, 400% DO Concentration - Max, ±1% DO Accuracy (MPN ST300D)
OHAUS
OHAUS Dissolved Oxygen Meter: Dissolved Oxygen/Temp, 400% DO Concentration - Max, ±1% DO Accuracy (MPN ST300D)
OHAUS
OHAUS
OHAUS Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.01 mg/L, ±0.2 mg/L (MPN ST400D-G)
OHAUS
OHAUS
OHAUS Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.01 mg/L, ±0.2 mg/L (MPN ST400D)
OHAUS Dissolved Oxygen Meter Kit: Dissolved Oxygen/Temp, 400% DO Concentration - Max, 10°C – 40°C (MPN ST300D-G)
OHAUS
OHAUS Dissolved Oxygen Meter Kit: Dissolved Oxygen/Temp, 400% DO Concentration - Max, 10°C – 40°C (MPN ST300D-G)
OHAUS
OHAUS
OHAUS Dissolved Oxygen Meter: Dissolved Oxygen, 200% DO Concentration - Max, 0.01 mg/L, ±0.2 mg/L (MPN ST400D-B)