Hanna Instruments
Hanna Instruments HI98107 pHep pH Tester
$64.99
Best Ph Meters · head-to-head
Hanna Instruments HI98107 pHep pH Tester vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter
A sourced, side-by-side comparison. Hanna Instruments HI98107 pHep pH Tester is cheaper at $64.99. Every spec and price links to its source.
Milwaukee Instruments
Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Hanna Instruments HI98107 pHep pH Tester | Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter |
|---|---|---|
| US price | $64.99 | — |
| Brand | Hanna Instruments | Milwaukee Instruments |
| Released | — | — |
| Ph range | 0.0 to 14.0 pH | -2.00 to 16.00 pH |
| Resolution ph | 0.1 pH | 0.01 pH |
| Accuracy ph | ±0.1 pH at 25°C/77°F (Hanna's own spec table separately lists ±0.2 pH; the narrative accuracy claim ±0.1 pH is used here) | ±0.02 pH |
| Calibration points | Automatic, 1 or 2-point, using standard buffers 4.01/7.01/10.01 | Automatic, 1 or 2 points |
| Atc | Automatic, 0 to 50°C | Automatic, 0 to 70°C |
| Electrode type | Cloth-junction pH electrode (larger surface area than a standard ceramic junction) | SE220 gel-filled double-junction lab-grade pH electrode + MA831R temperature probe (both included) |
| Waterproof rating | Waterproof; rated to RH 100% max, 0 to 50°C | — |
| Battery type | 1 x CR2032 3V lithium, approx. 1000 hours continuous use | 1 x 9V, approx. 300 hours continuous use |
Sources — Hanna Instruments HI98107 pHep pH Tester: hannainst.com (verified 2026-08-12). Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter: milwaukeeinstruments.eu (verified 2026-08-12).
What's the difference between the Hanna Instruments HI98107 pHep pH Tester and Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter?
Where the two actually differ on the specs we track (7 of 8). Matching specs are omitted.
- Ph range: Hanna Instruments HI98107 pHep pH Tester 0.0 to 14.0 pH vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter -2.00 to 16.00 pH
- Resolution ph: Hanna Instruments HI98107 pHep pH Tester 0.1 pH vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter 0.01 pH
- Accuracy ph: Hanna Instruments HI98107 pHep pH Tester ±0.1 pH at 25°C/77°F (Hanna's own spec table separately lists ±0.2 pH; the narrative accuracy claim ±0.1 pH is used here) vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter ±0.02 pH
- Calibration points: Hanna Instruments HI98107 pHep pH Tester Automatic, 1 or 2-point, using standard buffers 4.01/7.01/10.01 vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter Automatic, 1 or 2 points
- Atc: Hanna Instruments HI98107 pHep pH Tester Automatic, 0 to 50°C vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter Automatic, 0 to 70°C
- Electrode type: Hanna Instruments HI98107 pHep pH Tester Cloth-junction pH electrode (larger surface area than a standard ceramic junction) vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter SE220 gel-filled double-junction lab-grade pH electrode + MA831R temperature probe (both included)
- Battery type: Hanna Instruments HI98107 pHep pH Tester 1 x CR2032 3V lithium, approx. 1000 hours continuous use vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter 1 x 9V, approx. 300 hours continuous use