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pH Meters

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BlueLab Guardian Monitor
BlueLab Guardian Monitor The Bluelab Guardian is a constant indicator of the desired levels o..
Ships Free!
$364.00 $319.65
BlueLab Combo Meter, PPM & PH
Bluelab Combo Meter™ Better crops start with the Bluelab Combo Meter, it's all you need ..
Ships Free!
$298.00 $259.35
Bluelab Meter Carry Case
Bluelab Meter Carry Case Bluelab is excited to introduce a new accessory which makes transpor..
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On Orders Over $149!
$25.00 $22.50
BlueLab Soil pH Meter w/ Probe
BlueLab Soil pH Meter w/ Probe If you need to measure the pH level of soil, media or substrat..
Ships Free!
$245.00 $199.75
BlueLab Grower's Toolbox
BlueLab Grower's Toolbox  The Bluelab Grower’s Toolbox combines the essential to..
Ships Free!
$199.00 $179.95
Bluelab pH Pen
Bluelab pH Pen The Bluelab pH Pen is the latest innovation for hand held pH meters and is the..
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$112.50 $99.85
Bluelab Connect Range Extender
Bluelab Connect Range Extender The Bluelab® Guardian Monitor Connect, Bluelab® Connect Stick,..
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$164.00 $142.75
Bluelab Connect Stick
Bluelab Connect Stick The Bluelab® Guardian Monitor Connect, Bluelab® Connect Stick, Bluelab®..
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$151.70 $132.40
Bluelab Guardian Connect
Bluelab Guardian Connect The Bluelab® Guardian Monitor Connect is not only a constant indicat..
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$450.00 $393.00
Bluelab® pH Controller Connect
Bluelab® pH Controller Connect The brainy pH controller connect consistently monitors and fin..
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$629.99 $499.85
Hanna GroChek pH/EC/TDS/C Portable meter
Hanna GroChek pH/EC/TDS/C Portable meter w/Cal Check The GroCheck Portable Meter is a versati..
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$283.95 $239.75
Hanna GroChek pH/EC/TDS/Temp. Combo
Hanna GroChek pH/EC/TDS/Temp. Combo This indicator continuously monitors the three most cruci..
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$246.95 $209.90
Bluelab Replacement Probes for BlueLab Models
Bluelab Replacement Probes for BlueLab Models All BlueLab Replacement Probes. Choose your mod..
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$102.99 $69.00
HM Replacement pH Sensor PH-200
HM Replacement pH Sensor PH-200 This HM Replacement pH Sensor PH-200 is for HM Digital W..
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On Orders Over $149!
$44.95 $40.45
General Hydroponics pH Control Kit
This item cannot be shipped outside of the U.S. due to shipping restrictions. General Hydropo..
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On Orders Over $149!
$17.20 $13.90
HM Digital pH 80
HM Digital pH 80 The rereliable and long lasting HM Digital pH 80 has a low battery indi..
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$62.95 $59.90
HM Digital Waterproof pH Meter Model PH-200
HM Digital Waterproof pH Meter Model PH-200 The HM Digital Waterproof pH Meter Model PH-200 m..
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$114.95 $89.85
Bluelab Soil pH Pen
Bluelab Soil pH Pen The Bluelab Soil pH Pen provides a pH and temperature reading of soils an..
Ships Free!
$185.00 $161.55
Hanna GroChek replacement probe for HI9813-6
Hanna GroChek replacement probe for HI9813-6 Keep your GroChek HI9813 pH temperature meter ru..
Ships Free!
$156.99 $134.95
Hanna Instruments GroChek pH & TDS Combo Continuous Reading Meter
Hanna Instruments GroChek pH & TDS Combo Continuous Reading Meter This continuous reading..
Ships Free!
$249.99 $214.95
Oakton Waterproof EcoTester pH1
Oakton Waterproof EcoTester pH1 The Oakton Waterproof EcoTestr pH1 is a convenient ..
Ships Free!
$69.95 $67.05
Perfect pH (35 Gal Model)
Perfect pH (35 Gal Model) - Natural Ion pH Balancer The perfectpH is a revolutionar..
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$99.00 $99.00
Perfect pH (70 Gal Model)
Perfect pH (70 Gal Model) - Natural Ion pH Balancer  The perfectpH is a revolu..
Ships Free!
$149.00 $149.00
Oakton Waterproof pHTestr 10
Oakton Waterproof pHTestr 10 The Oakton Waterproof pHTestr 10 is perfect for growers’ water q..
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$133.95 $120.55
Oakton Combo PTtester35 TDS/pH Waterproof Tester
Oakton Combo PTtester35 TDS/pH Waterproof Tester Two important measurements in one instrument..
Ships Free!
$192.95 $167.85
Autopilot Digital PH Controller
Autopilot Digital PH Controller The Autopilot pH-1 controller accurately and reliably measure..
Ships Free!
$369.95 $319.95
Autopilot pH Controller Sampling Kit
Autopilot pH Controller Sampling Kit The Autopilot pH Controller Sampling Kit pH sampling ass..
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$74.95 $71.85
General Hydroponics pH Test Kit
General Hydroponics pH Test Kit The General Hydroponics pH Test Kit is a liquid tester that c..
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On Orders Over $149!
$7.55 $6.10
General Hydroponics pH Test Indicator, 8 oz.
General Hydroponics pH Test Indicator, 8 oz. This General Hydroponics concentrated pH test in..
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On Orders Over $149!
$10.75 $8.95
pH Test Papers, 15ft roll
pH Test Papers, 15ft roll An essential and inexpensive tool to test your pH levels. 15’ roll ..
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On Orders Over $149!
$6.50 $6.25
Rapitest Digital Plus Soil pH Meter
Rapitest Digital Plus Soil pH Meter The Rapitest Digital Plus Soil pH Meter is programmed wit..
$29.95 $25.95
Rapitest Digital Soil PH Meter
Rapitest Digital Soil PH Meter Plants need the correct pH level which controls how well plant..
Ships Free
On Orders Over $149!
$14.95 $12.95
Rapitest Soil Test Kit
Rapitest Soil Test Kit Why test your soil? Plants need food (nutrients) for health growth. Ni..
Ships Free
On Orders Over $149!
$18.95 $16.45
Accurate pH 8 Soil pH & Moisture Meter
Accurate pH 8 Soil pH & Moisture Meter The Accurate pH 8 is a professional pH and Moistur..
Ships Free
On Orders Over $149!
$77.95 $66.80
Bond 3 Way Soil Meter
Bond 3 Way Soil Meter Measures moisture content of soil. Lets you know to water. Helps you de..
Ships Free
On Orders Over $149!
$9.95 $9.15

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