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 $131.167 Apera Instruments ph meters ranked. Each one is scored and ranked against every brand in its type, so "#3 mid-size" means third of all mid-size ph meters here, not third among Apera Instruments's own.
Apera Instruments makes 7 current ph meters: 3 pen testers, 2 portable meters and 2 benchtop meters. Prices run from $56.65 for the Apera PH20 to $395.85 for the Apera PH800 Benchtop. Its best-rated model in each size: the Apera PC60 pH/EC Tester (#1 of 13 pen testers, rated 4.1), the Apera SX711 Portable (#2 of 8 portable meters, rated 3.8) and the Apera PH800 Benchtop (#2 of 5 benchtop meters, rated 3.6).
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.
Apera Instruments ph meters 7
- Apera PC60 pH/EC Tester#1 pen testersFull 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 pen testersFull 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 - Apera SX711 Portable#2 portable metersFull 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 - Apera PH800 Benchtop#2 benchtop metersFull 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 benchtop metersFull review
An affordable starter bench meter for school labs, breweries and small QC benches.
Amazon $299$299±0.01 pH3-pointNone - Apera PH400 Portable#4 portable metersFull review
A solid handheld kit for brewing and field work. The Apera SX711 now does more for less money.
Amazon $305.07$305.07±0.01 pH3-pointNone - Apera PH20#9 pen testersFull review
A cheap, waterproof pen for pools, aquariums and drinking water. Pick it when 0.1 pH is close enough.
Amazon $56.65$56.65±0.1 pH3-pointNone