A Black Friday "deal" is often a normal price next to an inflated list price. Here a ph meter only counts as on sale when its checked price is at least 15% below its own typical price over the last 90 days, from our price history. The best-rated models are listed too, since many are good value without a sale. See deals in every category.
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
On sale now
No ph meter rated 3.8 or higher is 15% or more below its typical price at the last price check (November 9, 2026). Prices are rechecked through the sales; this list updates when one drops. See the recent price changes.
Best buys at their normal price
The top-rated models in each type. A sale on one of these is worth more than a big discount on a weaker model.
Best pH Pen Testers
- Apera PC60 pH/EC Tester#1 of 13Full review
A pen that checks pH and nutrient strength together, for hydroponic growers and reef keepers. It is accurate and the probe can be replaced.
Amazon $131.16$131.16±0.01 pH3-pointEC/TDS, Salinity - Apera PH60#2 of 13Full review
The pick for most people who want an accurate pen tester: ±0.01 pH, three-point calibration and a replaceable probe at pen-tester money.
Amazon $79.99$79.99±0.01 pH3-pointNone - Oakton pHTestr 30#3 of 13Full review
A lab-brand pocket tester with a replaceable module, for labs and schools that already stock Oakton parts.
Amazon $136.22$136.22±0.01 pH3-pointNone
Best Portable pH Meters
- Bante 221 pH/ORP Portable#1 of 8Full review
A handheld with benchtop-class accuracy and an ORP electrode in the box, for water-treatment and lab work away from the bench.
Amazon $350$350±0.002 pH5-pointORP - Apera SX711 Portable#2 of 8Full review
A strong all-round handheld for brewers, food makers and field labs. It is accurate, logs readings and comes with a long warranty.
Amazon $279$279±0.01 pH3-pointNone - Bante 220 Portable#3 of 8Full review
A capable logging handheld for the price. Its maker publishes little beyond the core specs.
Amazon $200$200±0.01 pH3-pointNone
Best Benchtop pH Meters
- Milwaukee MW151 Max Logging#1 of 5Full review
The most accurate meter here, for labs that need 0.001 pH resolution and full logging.
Amazon $538.20$538.20±0.002 pH5-pointNone - Apera PH800 Benchtop#2 of 5Full review
A lab bench meter with proper record keeping, for QC labs that need to export readings.
Amazon $395.85$395.85±0.01 pH3-pointNone - Apera PH700 Benchtop#3 of 5Full review
An affordable starter bench meter for school labs, breweries and small QC benches.
Amazon $299$299±0.01 pH3-pointNone
