Ohaus ST300 Starter 300 pH Portable

In stock
SKU: 83033961
Regular price $370.56
Regular price -31% $539.00 Sale price $370.56
The Ohaus ST300 Starter 300 pH Portable, your reliable companion for precise pH measurements on the go. Designed with cutting-edge technology and user-friendly features, this portable pH meter is ideal for various water analysis applications, from laboratories to fieldwork.
Equipped with advanced pH measurement capabilities, the ST300 ensures accurate and reliable results every time. Its intuitive interface allows for effortless operation, making it suitable for both novice users and seasoned professionals. With a compact and lightweight design, this pH meter is highly portable, enabling convenient use in diverse environments.


- Utilizing state-of-the-art technology, the ST300 delivers precise pH measurements, ensuring accuracy in your analyses.
- The intuitive interface and easy-to-navigate menu make operation straightforward, minimizing the learning curve for users of all levels.
- Compact and lightweight, the ST300 is designed for portability, allowing you to take accurate pH measurements wherever you go.
- Built to withstand demanding environments, the ST300 features a robust construction that ensures long-lasting performance, even in challenging conditions.
- From laboratories to fieldwork, the ST300 is suitable for a wide range of water analysis applications, including environmental monitoring, agriculture, and quality control.
- The ST300 offers convenient calibration options, allowing users to calibrate the instrument easily for accurate measurements.
- The bright LCD display provides clear visibility of measurement results, ensuring easy reading even in low-light conditions.
accuracy ± 0.03% mV;± 0.002 pH;± 0.1 °C
atc Yes
brand Starter Series Portabel Meters
electrode ST320 (Available as an accessory)
in-use-cover Included
list-price 539.00
manufacturer-part-number 83033961
measurement-range -2.00 – 20.00 pH;-2000.00 – +2000.00 mV;-30 – 130°C
measurement-resolution 0.001 pH;0.01 mV;0.1 °C
meter-type pH;ORP
model ST300
net-weight 19.5 oz (550 g)
parameter pH / ORP
part-number 83033961
ph-accuracy 0.002
ph-measuring-range -2 – 20
ph-resolution 0.001
power AC Adapter (Included)
protection-rating IP54
Spec Sheet ST300_Spec_Sheet.pdf
temperature-compensation Automatic
temperature-display Yes
temperature-range -30 °C – 130 °C
temperature-resolution 0.1 °C
temperature-sensor 30 KΩ NTC
working-environment 50°F – 104°F, 85%RH, non-condensing (10°C – 40°C, 85%RH, non-condensing)

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unused, and in its original packaging.

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Free Ground shipping does not apply for demo/used/refurbished/clearance units and any order over 100 lbs of actual or dimensional weight (other exclusions also applies).