pH & EC Combo Meters

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Showing 1 - 13 of 13 products
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Aquamaster Tools P110 Pro Combo Ph, EC & Temp PenAquamaster Tools P110 Pro Combo Ph, EC & Temp Pen
Aquamaster Tools P110 Pro Combo Ph, EC & Temp Pen
$159.95 $172.95
Save $121.93
Bluelab Combo Meter PH + ECBluelab Combo Meter PH + EC
Bluelab Combo Meter PH + EC
$438.73 $560.66
Save $18.40
Aquamaster P160 Pro Combo pH – EC – PPM – TDS – Temp MeterAquamaster P160 Pro Combo pH – EC – PPM – TDS – Temp Meter
Aquamaster P160 Pro Combo pH – EC – PPM – TDS – Temp Meter
$226.55 $244.95
Save $338.14
Bluelab Combo Meter Plus Leap Probe PH, EC Temp & Soil PH
Bluelab Combo Meter Plus Leap Probe PH, EC Temp & Soil PH
$545.83 $883.97
Save $36.50
Bluelab One-Pen EC, PH & Temp Combo PenBluelab One-Pen EC, PH & Temp Combo Pen
Bluelab One-Pen EC, PH & Temp Combo Pen
$463.45 $499.95
Save $20.00
AC Infinity Hydroponic Meter Pro Kit, ALL-IN-ONE PH PEN, Interchangeable ProbeAC Infinity Hydroponic Meter Pro Kit, ALL-IN-ONE PH PEN, Interchangeable Probe
AC Infinity Hydroponic Meter Pro Kit, ALL-IN-ONE PH PEN, Interchangeable Probe
$279.95 $299.95
Spider Farmer 5-in-1 hydroponic pH meter kit with calibration powders and USB Type-C cableSpider Farmer 5-in-1 pH meter showing high-precision electrode sensor
Spider Farmer 5-in-1 Hydroponic pH Meter Kit - pH/EC/TDS/Temp/Salinity
$90.00
Bluelab Guardian Monitor Inline With Wifi
Bluelab Guardian Monitor Inline With Wifi
$998.95
Save $24.30
Aquamaster H600 Pro Substrate pH – EC – PPM – TDS – Temp Handheld Inc CaseAquamaster H600 Pro Substrate pH – EC – PPM – TDS – Temp Handheld Inc Case
Aquamaster H600 Pro Substrate pH – EC – PPM – TDS – Temp Handheld Inc Case
$710.65 $734.95
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Aqua Master C800 Pro Inline ControllerAqua Master C800 Pro Inline Controller
Aqua Master C800 Pro Inline Controller
$2,040.00 $3,060.00
Save $41.65
Aquamaster Tools P700 PRO-2 Combo Meter pH-EC–CF–PPM–TempAquamaster Tools P700 PRO-2 Combo Meter pH-EC–CF–PPM–Temp
Aquamaster Tools P700 PRO-2 Combo Meter pH-EC–CF–PPM–Temp
$458.30 $499.95
Save $764.00
Aqua Master C800 Pro Controller
Aqua Master C800 Pro Controller
$1,528.00 $2,292.00
Save $43.80
Aquamaster H600 Pro PH – EC – PPM – TDS – Temp Handheld Inc CaseAquamaster H600 Pro PH – EC – PPM – TDS – Temp Handheld Inc Case
Aquamaster H600 Pro PH – EC – PPM – TDS – Temp Handheld Inc Case
$556.15 $599.95

Two pens in one

Every reservoir check comes down to the same two numbers — pH for availability, EC for strength. A combo meter reads both (with temperature alongside) in a single dip, which is why it's the upgrade most growers make once daily testing becomes routine.

Handhelds and monitors

Pens and handhelds. The Bluelab Combo Meter is the benchmark, the Combo Plus adds the Leap probe for soil, and the One-Pen squeezes pH, EC and temperature into a pocket pen. Aquamaster's P110 and P160 combo pens and the H600 handhelds (including a substrate version, cases included) cover the pro end, with AC Infinity's all-in-one kit bringing interchangeable probes to the party.

Set-and-watch monitors. The Bluelab Guardian and Aquamaster C800 sit on the reservoir and read continuously — combo measurement without the daily dip.

Probes wear out. Meters shouldn't.

The glass pH electrode is the consumable in any combo meter, so replaceable-probe models earn their keep: the Aquamaster P110's replacement pH–EC electrode is stocked here, and the AC Infinity kit swaps probes the same way. Whatever you run, calibrate both sides — pH buffer and conductivity standards — and log it.

pH & EC Combo Meters FAQ's

Yes — a combo runs the same pH and EC electrodes as dedicated pens, just in one housing with one display. Accuracy comes down to calibration and probe condition, not the number of instruments. The practical trade-off is different: with separate pens a dead probe takes out one reading, with a combo it takes out the lot.

From this range: the Aquamaster P110 Pro-2 (its replacement pH–EC electrode is stocked separately) and the AC Infinity Hydroponic Meter Pro Kit with its interchangeable probe system. On fixed-probe combos the electrode's lifespan sets the meter's lifespan — store it wet in KCl and it'll go years, not months.

All the combos here do — solution temperature rides along with pH and EC on the display. That matters more than it looks: temperature affects both readings, and the better meters use it for automatic temperature compensation so a warm reservoir doesn't skew your numbers.

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