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Apera Instruments
Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester
$110Cheaper
Best Ph Meters · head-to-head
Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe
A sourced, side-by-side comparison. Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester is cheaper at $110. Every spec and price links to its source.
Atlas Scientific
Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe
$174.99
Which is better: the Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester or Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe?
On the specs we track, they're closely matched. The Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester is the cheaper at $110.
See Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester on Amazon See Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester | Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe |
|---|---|---|
| US price | $110 | $174.99 |
| Brand | Apera Instruments | Atlas Scientific |
| Released | — | — |
| Ph range | -2.00 to 16.00 pH | 0 to 14 pH |
| Resolution ph | 0.01 / 0.1 pH (selectable) | 0.001 pH |
| Accuracy ph | ±0.01 pH ±1 digit | ±0.002 pH (probe reading accuracy) |
| Calibration points | Automatic, 1 to 3 points; auto-recognizes buffers 1.68, 4.00, 7.00, 10.01, 12.46 | Up to 3-point; kit includes 6x 20ml calibration solution pouches (2x pH 4, 2x pH 7, 2x pH 10) |
| Atc | Automatic, 0 to 50°C (32 to 122°F) | — |
| Electrode type | Replaceable single-junction ceramic pH probe, lead-free lithium-based glass bulb membrane, Ag/AgCl reference, KCl gel electrolyte | Double-junction Ag/AgCl Gen 3 Lab Grade pH probe (BNC connection to EZO pH circuit board) |
| Waterproof rating | IP67, floats | — |
| Battery type | 4 x AAA (DC3V), up to 2000 hours continuous use | None — EZO circuit is powered by the host carrier/development board, no internal battery |
Sources — Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester: aperainst.com (verified 2026-08-12). Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe: atlas-scientific.com (verified 2026-08-12).
What's the difference between the Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester and Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Ph range: Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester -2.00 to 16.00 pH vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe 0 to 14 pH
- Resolution ph: Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester 0.01 / 0.1 pH (selectable) vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe 0.001 pH
- Accuracy ph: Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester ±0.01 pH ±1 digit vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe ±0.002 pH (probe reading accuracy)
- Calibration points: Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester Automatic, 1 to 3 points; auto-recognizes buffers 1.68, 4.00, 7.00, 10.01, 12.46 vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe Up to 3-point; kit includes 6x 20ml calibration solution pouches (2x pH 4, 2x pH 7, 2x pH 10)
- Electrode type: Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester Replaceable single-junction ceramic pH probe, lead-free lithium-based glass bulb membrane, Ag/AgCl reference, KCl gel electrolyte vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe Double-junction Ag/AgCl Gen 3 Lab Grade pH probe (BNC connection to EZO pH circuit board)
- Battery type: Apera Instruments PH60 Premium Series Waterproof Pocket pH Tester 4 x AAA (DC3V), up to 2000 hours continuous use vs Atlas Scientific pH Kit (KIT-101P) — EZO pH Circuit + Gen 3 Lab Grade Probe None — EZO circuit is powered by the host carrier/development board, no internal battery