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Oakton Instruments
Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14)
$169.3
Best Ph Meters · head-to-head
Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14) vs VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics
A sourced, side-by-side comparison. VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics is cheaper at $8.55. Every spec and price links to its source.
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VIVOSUN
VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics
$8.55Cheaper
Which is better: the Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14) or VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics?
On the specs we track, they're closely matched. The VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics is the cheaper at $8.55.
Check Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14) price Check VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics price
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14) | VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics |
|---|---|---|
| US price | $169.3 | $8.55 |
| Brand | Oakton Instruments | VIVOSUN |
| Released | — | — |
| Ph range | — | 0.00 to 14.00 |
| Resolution ph | — | 0.01 pH |
| Accuracy ph | — | ±0.01 pH |
| Calibration points | Three-point, push-button calibration with auto-buffer recognition | 3-point (calibration buffer powders included) |
| Atc | — | Yes |
| Electrode type | Replaceable BNC pH probe | — |
| Waterproof rating | IP67 | — |
| Battery type | — | 2 x 1.5V button cell (built-in) |
Sources — Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14): amazon.com (verified 2026-08-12). VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics: amazon.com (verified 2026-08-12).
What's the difference between the Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14) and VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics?
Where the two actually differ on the specs we track (1 of 8). Matching specs are omitted.
- Calibration points: Oakton pHTestr 10 Waterproof BNC Pocket pH Tester (WD-35634-14) Three-point, push-button calibration with auto-buffer recognition vs VIVOSUN Digital pH Meter Pen Tester for Water & Hydroponics 3-point (calibration buffer powders included)