




Eutech Oakton pHTestr 30
Specifications
Product Specification |
Description |
pH Range | -1.0 to 15.0 pH |
Resolution | 0.01 pH |
Accuracy | ±0.01 pH |
Temperature Display | 0 to 50 °C or 32 to 122 °F |
Resolution | 0.1 °C / °F |
Accuracy | 0.5 °C / 0.9 °F |
No. of Calibration Points | 3 points |
pH Buffer Options | USA - pH 4.01, 7.00, 10.01; NIST - pH 4.01, 6.86, 9.18 |
LCD Display | Dual display with battery indicator, error messages/codes |
ATC | Yes |
Special Functions | Large Dual Custom Display, Self-diagnostic; Hold function; Auto-Power Off after 8.5 minutes |
Power | 4 x 1.5V alkaline button cell batteries; >500 hrs |
Our most popular pHTestr® offers a larger display, with more information to make measurement easier.
pHTestr 30 features – Three-point calibration, ±0.01 pH accuracy, and simultaneous temperature display.
Unique double-junction electrode design – For significantly longer electrode life, especially in harsh applications like wastewater, plating baths, life science, and food.
Features
Waterproof, dustproof housing – IP67 rated, maintains the integrity of your tester even in dirty or damp field conditions. Plus, it floats!
Replaceable electrode module – Reuse the same meter body for cost savings
Push-button calibration with auto-buffer recognition Automatic temperature compensation (ATC) – Gives you accurate readings even with fluctuating temperatures
Hold function – Freezes reading so that you can record it
Self-diagnostic error messages – Make troubleshooting easier
Auto shutoff – Extends the life of the batteries
pHTestr 10 features – Three-point calibration, ±0.1 pH accuracy
pHTestr 20 features – Three-point calibration, ±0.01 pH accuracy
pHTestr 30 features – Three-point calibration, ±0.01 pH accuracy, and simultaneous temperature display
Replacement Codes
WD-35634-30: pHTestr 30 Tester, electrode, detachable electrode sensor, calibration buffer pouches, and batteries
WD-35624-38:Replacement electrode sensor for pHTestr 10, 20, and 30
WD-35634-90: pHTestr 30 calibration kit includes Testr, calibration buffer pouches (two each of pH 4.01, 7.00, 10.00 and rinse water), sample jar, and sturdy carrying case
Sku:PHTEST30

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.