# Hanna Instruments HI98107 pHep pH Tester vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter: specs and price compared

A sourced, side-by-side comparison of the Hanna Instruments HI98107 pHep pH Tester (Hanna Instruments) and Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter (Milwaukee Instruments) among ph meters.

## Side by side

| Spec | Hanna Instruments HI98107 pHep pH Tester | Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter |
| --- | --- | --- |
| US price | $64.99 | not published |
| Brand | Hanna Instruments | Milwaukee Instruments |
| 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 |

## Key differences

- 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

## Sources

- Hanna Instruments HI98107 pHep pH Tester: https://www.hannainst.com/hi98107-phep-ph-tester.html (hannainst.com, verified 2026-08-12)
- Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter: https://milwaukeeinstruments.eu/milwaukee-mw102-pro-ph-meter-with-temperature-probe (milwaukeeinstruments.eu, verified 2026-08-12)

Canonical: https://frontdeskreview.com/gear/ph-meters/hanna-hi98107-vs-milwaukee-mw102/
Cite: Per The Front Desk Review, Hanna Instruments HI98107 pHep pH Tester ($64.99) vs Milwaukee Instruments MW102 PRO+ 2-in-1 pH and Temperature Meter (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/ph-meters/hanna-hi98107-vs-milwaukee-mw102/
License: CC BY 4.0.