Ohaus ST300 Portable pH/ORP Meter with Temperature Sensor and 3-Point Calibration

Name: Ohaus ST300 Portable pH/ORP Meter with Temperature Sensor and 3-Point Calibration
Brand: Ohaus
SKU: 59092
Price: 536.16 EUR
Availability: InStock

UsedOhauspH meterUnited States

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Measurement Range: 0.00 – 14.00 pH; -1999 – 1999 mV; 0 – 100 °C
Accuracy: ±0.01 pH; ±1 mV; ±0.5 °C
Measurement Resolution: 0.01 pH; 1 mV; 0.1 °C
Display: LCD
Electrode: ST320 (Included)

All 23 specifications

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Specifications 23

Brands: Ohaus
New/Used: Used
Measurement Range: 0.00 – 14.00 pH; -1999 – 1999 mV; 0 – 100 °C
Accuracy: ±0.01 pH; ±1 mV; ±0.5 °C
Measurement Resolution: 0.01 pH; 1 mV; 0.1 °C
Display: LCD
Electrode: ST320 (Included)
Accuracy ± (mV): 1 mV
Battery Life: 500 Hours with Disposable Batteries
Calibration: 3 Point
Dimensions (HxLxW): 1.38 in x 6.69 in x 3.54 in (35 mm x 170 mm x 90 mm)
In-use cover: No

Measurement Range (Temperature): 0 °C – 100 °C
Net Weight: 0.35 lb (0.16 kg)
pH accuracy (±): 0.01
pH measuring range: 0 – 14
pH resolution: 0.01
Power: 4 AAA (LR03) Batteries (Included)
Resolution (Voltage): 1 mV
Temperature Compensation: Yes
Temperature Resolution: 0.1 °C
Temperature Sensor: 30 KΩ NTC
Working Environment: 41°F – 104°F, 80%RH, non-condensing (5°C – 40°C, 80%RH, non-condensing)

Product description

Portable pH meter with ±0.01 pH accuracy, measures pH, ORP, temperature; includes ST320 electrode, LCD display.

Ohaus ST300 pH Meter (Model #83033961)

Measurement ranges:
pH: 0.00 to 14.00
ORP (Voltage): -1999 to 1999 mV
Temperature: 0 to 100 °C

Accuracy:
pH: ±0.01
ORP: ±1 mV
Temperature: ±0.5 °C

Resolution:
pH: 0.01
Voltage: 1 mV
Temperature: 0.1 °C

Calibration: 3-point calibration displayed on screen for accuracy tracking

Display: LCD with clear, organized layout and five direct input keys

Included Electrode: ST320

Power: 4 AAA (LR03) batteries included, ~500 hours battery life

Temperature Compensation: Automatic using 30 KΩ NTC sensor

Physical Dimensions: 1.38 in x 6.69 in x 3.54 in (35 mm x 170 mm x 90 mm)

Weight: 0.35 lb (0.16 kg)

Operating Environment: 5 °C to 40 °C (41 °F – 104 °F), 80% RH, non-condensing

Additional Features:
Built-in or standalone electrode holders for convenience
Intuitive software interface for ease of use
Portable design suitable for field or bench use

€536 sits in the middle range ph meter here. The middle half of the 300 with a price runs from €121 to €626.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.