Milwaukee Instruments
Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter
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Best Ph Meters · head-to-head
Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter vs Extech PH100 ExStik II Waterproof pH Meter
A sourced, side-by-side comparison. Extech PH100 ExStik II Waterproof pH Meter is cheaper at $124. Every spec and price links to its source.
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Extech Instruments
Extech PH100 ExStik II Waterproof pH Meter
$124
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter | Extech PH100 ExStik II Waterproof pH Meter |
|---|---|---|
| US price | — | $124 |
| Brand | Milwaukee Instruments | Extech Instruments |
| Released | — | — |
| Ph range | -2.00 to 16.00 pH | 0.00 to 14.00 pH |
| Resolution ph | 0.01 pH | 0.01 pH |
| Accuracy ph | ±0.02 pH | ±0.01 pH |
| Calibration points | Automatic, 1 or 2 points | — |
| Atc | Automatic, 0 to 70°C | Yes, automatic |
| Electrode type | SE220 gel-filled double-junction lab-grade pH electrode + MA831R temperature probe (both included) | Flat-surface electrode (rated for liquids, semi-solids, and solids) |
| Waterproof rating | — | IP57 |
| Battery type | 1 x 9V, approx. 300 hours continuous use | 4 x CR2032 3V button cell |
Sources — Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter: milwaukeeinstruments.eu (verified 2026-08-12). Extech PH100 ExStik II Waterproof pH Meter: extech.com (verified 2026-08-12).
What's the difference between the Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter and Extech PH100 ExStik II Waterproof pH Meter?
Where the two actually differ on the specs we track (5 of 8). Matching specs are omitted.
- Ph range: Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter -2.00 to 16.00 pH vs Extech PH100 ExStik II Waterproof pH Meter 0.00 to 14.00 pH
- Accuracy ph: Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter ±0.02 pH vs Extech PH100 ExStik II Waterproof pH Meter ±0.01 pH
- Atc: Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter Automatic, 0 to 70°C vs Extech PH100 ExStik II Waterproof pH Meter Yes, automatic
- Electrode type: 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) vs Extech PH100 ExStik II Waterproof pH Meter Flat-surface electrode (rated for liquids, semi-solids, and solids)
- Battery type: Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter 1 x 9V, approx. 300 hours continuous use vs Extech PH100 ExStik II Waterproof pH Meter 4 x CR2032 3V button cell