pH Meters

pH meters are an electronic device which are used in hydroponics to measure the hydrogen ions in a solution. They test the acidity or alkalinity of your nutrient solution. As a general guide and with some exceptions, the optimal pH range of your nutrient solution should be between 5.5 and 6.0. Please see our Complete EC & pH levels chart for hydroponic plants for more information. We stock pH meters and pens from Bluelab, HM and Milwaukee.

All Products

Bluelab pH Pen

Bluelab pH Pen

Normal price: $127.95
Now  $112.46

Fast Dispatch
12% OFF
Bluelab Grower's Toolbox Kit - EC, pH Pens & Complete Probe Care Accessories

Bluelab Grower's Toolbox Kit - EC, pH Pens & Complete Probe Care Acces

Normal price: $259.90
Now  $207.92

Fast Dispatch
20% OFF
pH Pocket Pen Meter

pH Pocket Pen Meter

Normal price: $49.00
Now  $36.75

Fast Dispatch
25% OFF
Milwaukee Sharp PH51 Tester
21% OFF
Bluelab Guardian Monitor for Continuous pH, EC and Temperature
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Only 4 left!
Bluelab pH Probe with 2m Cable

Bluelab pH Probe with 2m Cable

Normal price: $99.00
Now  $84.15

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15% OFF
Only 2 left!
HM pH Meter With Temperature

HM pH Meter With Temperature

Normal price: $95.00
Now  $71.25

Fast Dispatch
25% OFF
Bluelab Combo Meter PLUS For PH, EC & Temperature Including Soil PH
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Only 1 left!
Bluelab Leap Spear Tip pH Probe

Bluelab Leap Spear Tip pH Probe

Normal price: $199.00
Now  $169.15

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15% OFF
Only 1 left!
Bluelab pH Controller CONNECT with Built-In Peridoser Pump

Bluelab pH Controller CONNECT with Built-In Peridoser Pump

Normal price: $895.00
Now  $850.25

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5% OFF
Only 1 left!
Bluelab pH Controller with Built-In Peridoser Pump

Bluelab pH Controller with Built-In Peridoser Pump

Normal price: $845.00
Now  $802.75

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5% OFF
Only 2 left!
Bluelab pH Multimedia Meter and Leap pH Probe for Soil and Hydroponics

Bluelab pH Multimedia Meter and Leap pH Probe for Soil and Hydroponics

Normal price: $399.00
Now  $319.20

Online Only
20% OFF
Only 3 left!