Shop Blue Lab pH Meters

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$99.95
$112.50
Bluelab Ph Pen - ± 0.1 Ph Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made In NZ
Amazon.com
4K+
Free shipping
11% off
$99.95
$112.50
Bluelab Ph Pen - ± 0.1 Ph Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made In NZ
Amazon.com
4K+
$375.00
Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
Amazon.com
740
Free shipping
$375.00
Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
Amazon.com
740
$279.99
$308.00
Bluelab Combo Meter For Ph, Temperature & Conductivity In Water - Easy Calibration, Digital EC/TDS/PPM Tester For Hydroponics & Indoor Plants (METCOM)
Amazon.com
1K+
Free shipping
$279.99
$308.00
Bluelab Combo Meter For Ph, Temperature & Conductivity In Water - Easy Calibration, Digital EC/TDS/PPM Tester For Hydroponics & Indoor Plants (METCOM)
Amazon.com
1K+
$115.00
$124.79
Bluelab Ph Pen Meter And Probe Care Kit Ph With Calibration Supplies, Storage Solution & Brush, Reliable Digital Tester For Ph, Temperature In Growing
Amazon.com
4K+
Free shipping
$115.00
$124.79
Bluelab Ph Pen Meter And Probe Care Kit Ph With Calibration Supplies, Storage Solution & Brush, Reliable Digital Tester For Ph, Temperature In Growing
Amazon.com
4K+
$199.00
Bluelab Soil Ph Pen - Ph & Temperature Meter For Soil
Hydrobuilder
947
$199.00
Bluelab Soil Ph Pen - Ph & Temperature Meter For Soil
Hydrobuilder
947
$288.89
Bluelab METCOMPLUS Combo Meter Plus For Ph, Temperature, And Conductivity In Water And Soil With Easy Calibration, Digital Nutrient (TDS/PPM) Testing
Amazon.com
71
Free shipping
$288.89
Bluelab METCOMPLUS Combo Meter Plus For Ph, Temperature, And Conductivity In Water And Soil With Easy Calibration, Digital Nutrient (TDS/PPM) Testing
Amazon.com
71
$115.56
Buffer - Ph 10.00 - Color Coded Blue: Lab, 20 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP8
Grainger
$115.56
Buffer - Ph 10.00 - Color Coded Blue: Lab, 20 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP8
Grainger
$329.00
Bluelab Combo Meter - Ph, EC & Temperature Testing Tool
Hydrobuilder
1K+
$329.00
Bluelab Combo Meter - Ph, EC & Temperature Testing Tool
Hydrobuilder
1K+
$248.99
Bluelab Onepen Ph/EC/Temp Meter - 3-In-1 Testing Tool
Hydrobuilder
$248.99
Bluelab Onepen Ph/EC/Temp Meter - 3-In-1 Testing Tool
Hydrobuilder
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
81
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
81
$76.99
$103.94
Bluelab METCOM Combo Meter For Ph, Temperature, Conductivity (Nutrient) In Water With Easy Calibration, Digital TDS Tester For Hydroponic System And Indoor Plant Grow, Pack Of 1
seanluciw.
25% off
$76.99
$103.94
Bluelab METCOM Combo Meter For Ph, Temperature, Conductivity (Nutrient) In Water With Easy Calibration, Digital TDS Tester For Hydroponic System And Indoor Plant Grow, Pack Of 1
seanluciw.
$793.94
Bluelab Ph Controller Connect For Accurate Ph Monitoring
Hydrobuilder
8
$793.94
Bluelab Ph Controller Connect For Accurate Ph Monitoring
Hydrobuilder
8
$509.99
Bluelab Ph Controller - Ph Controller
Sylvane
167
$509.99
Bluelab Ph Controller - Ph Controller
Sylvane
167
$63.56
$100.29
Blue Lab PENPH Ph And Temperature Pen
Suthisa.us
Free shipping
36% off
$63.56
$100.29
Blue Lab PENPH Ph And Temperature Pen
Suthisa.us
Free shipping
$319.99
Bluelab Combo Meter Ph Ec Tds Ppm Temp Cf -Blue Lab Nutrient Electrode
eBay
$319.99
Bluelab Combo Meter Ph Ec Tds Ppm Temp Cf -Blue Lab Nutrient Electrode
eBay
$191.86
$209.00
Bluelab Soil Ph Pen
HTG Supply
$191.86
$209.00
Bluelab Soil Ph Pen
HTG Supply
$25.89
$89.87
Bluelab Conductivity Pen Meter And Probe Care Kit Ph And Conductivity-Water, Temperature And Nutrient Tester (CF, EC, PPM 500/700) With EC Solution And Cleaner For Hydroponics And Indoor Growing(Conductivity Pen + Care Kit)
tk.kri
71% off
$25.89
$89.87
Bluelab Conductivity Pen Meter And Probe Care Kit Ph And Conductivity-Water, Temperature And Nutrient Tester (CF, EC, PPM 500/700) With EC Solution And Cleaner For Hydroponics And Indoor Growing(Conductivity Pen + Care Kit)
tk.kri
$33.22
Buffer - Ph 10.00 - Color Coded Blue: Lab, 4 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP6
Grainger
$33.22
Buffer - Ph 10.00 - Color Coded Blue: Lab, 4 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP6
Grainger
$488.18
Bluelab Ph Controller & Auto Doser For Consistent Ph Levels
Hydrobuilder
$488.18
Bluelab Ph Controller & Auto Doser For Consistent Ph Levels
Hydrobuilder
$319.99
Bluelab Combo Meter Ph EC TDS PPM Temp CF -Blue Lab Nutrient Electrode. Bluelab. Blue. Moisture & Ph Meters. 9421024920975.
eBay
Free shipping
$319.99
Bluelab Combo Meter Ph EC TDS PPM Temp CF -Blue Lab Nutrient Electrode. Bluelab. Blue. Moisture & Ph Meters. 9421024920975.
eBay
Free shipping
$106.94
$125.00
Bluelab Ph Pen
HTG Supply
14% off
$106.94
$125.00
Bluelab Ph Pen
HTG Supply
$64.56
$103.29
Blue Lab PENPH Ph And Temperature Pen
topbraggrealtyus
37% off
$64.56
$103.29
Blue Lab PENPH Ph And Temperature Pen
topbraggrealtyus
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Shop Blue Lab pH Meters

Sponsored
About our ads
$99.95
$112.50
Bluelab Ph Pen - ± 0.1 Ph Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made In NZ
Amazon.com
4K+
Free shipping
11% off
$99.95
$112.50
Bluelab Ph Pen - ± 0.1 Ph Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made In NZ
Amazon.com
4K+
$375.00
Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
Amazon.com
740
Free shipping
$375.00
Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
Amazon.com
740
$279.99
$308.00
Bluelab Combo Meter For Ph, Temperature & Conductivity In Water - Easy Calibration, Digital EC/TDS/PPM Tester For Hydroponics & Indoor Plants (METCOM)
Amazon.com
1K+
Free shipping
$279.99
$308.00
Bluelab Combo Meter For Ph, Temperature & Conductivity In Water - Easy Calibration, Digital EC/TDS/PPM Tester For Hydroponics & Indoor Plants (METCOM)
Amazon.com
1K+
$115.00
$124.79
Bluelab Ph Pen Meter And Probe Care Kit Ph With Calibration Supplies, Storage Solution & Brush, Reliable Digital Tester For Ph, Temperature In Growing
Amazon.com
4K+
Free shipping
$115.00
$124.79
Bluelab Ph Pen Meter And Probe Care Kit Ph With Calibration Supplies, Storage Solution & Brush, Reliable Digital Tester For Ph, Temperature In Growing
Amazon.com
4K+
$199.00
Bluelab Soil Ph Pen - Ph & Temperature Meter For Soil
Hydrobuilder
947
$199.00
Bluelab Soil Ph Pen - Ph & Temperature Meter For Soil
Hydrobuilder
947
$288.89
Bluelab METCOMPLUS Combo Meter Plus For Ph, Temperature, And Conductivity In Water And Soil With Easy Calibration, Digital Nutrient (TDS/PPM) Testing
Amazon.com
71
Free shipping
$288.89
Bluelab METCOMPLUS Combo Meter Plus For Ph, Temperature, And Conductivity In Water And Soil With Easy Calibration, Digital Nutrient (TDS/PPM) Testing
Amazon.com
71
$115.56
Buffer - Ph 10.00 - Color Coded Blue: Lab, 20 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP8
Grainger
$115.56
Buffer - Ph 10.00 - Color Coded Blue: Lab, 20 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP8
Grainger
$329.00
Bluelab Combo Meter - Ph, EC & Temperature Testing Tool
Hydrobuilder
1K+
$329.00
Bluelab Combo Meter - Ph, EC & Temperature Testing Tool
Hydrobuilder
1K+
$248.99
Bluelab Onepen Ph/EC/Temp Meter - 3-In-1 Testing Tool
Hydrobuilder
$248.99
Bluelab Onepen Ph/EC/Temp Meter - 3-In-1 Testing Tool
Hydrobuilder
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
81
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
81
$76.99
$103.94
Bluelab METCOM Combo Meter For Ph, Temperature, Conductivity (Nutrient) In Water With Easy Calibration, Digital TDS Tester For Hydroponic System And Indoor Plant Grow, Pack Of 1
seanluciw.
25% off
$76.99
$103.94
Bluelab METCOM Combo Meter For Ph, Temperature, Conductivity (Nutrient) In Water With Easy Calibration, Digital TDS Tester For Hydroponic System And Indoor Plant Grow, Pack Of 1
seanluciw.
$793.94
Bluelab Ph Controller Connect For Accurate Ph Monitoring
Hydrobuilder
8
$793.94
Bluelab Ph Controller Connect For Accurate Ph Monitoring
Hydrobuilder
8
$509.99
Bluelab Ph Controller - Ph Controller
Sylvane
167
$509.99
Bluelab Ph Controller - Ph Controller
Sylvane
167
$63.56
$100.29
Blue Lab PENPH Ph And Temperature Pen
Suthisa.us
Free shipping
36% off
$63.56
$100.29
Blue Lab PENPH Ph And Temperature Pen
Suthisa.us
Free shipping
$319.99
Bluelab Combo Meter Ph Ec Tds Ppm Temp Cf -Blue Lab Nutrient Electrode
eBay
$319.99
Bluelab Combo Meter Ph Ec Tds Ppm Temp Cf -Blue Lab Nutrient Electrode
eBay
$191.86
$209.00
Bluelab Soil Ph Pen
HTG Supply
$191.86
$209.00
Bluelab Soil Ph Pen
HTG Supply
$25.89
$89.87
Bluelab Conductivity Pen Meter And Probe Care Kit Ph And Conductivity-Water, Temperature And Nutrient Tester (CF, EC, PPM 500/700) With EC Solution And Cleaner For Hydroponics And Indoor Growing(Conductivity Pen + Care Kit)
tk.kri
71% off
$25.89
$89.87
Bluelab Conductivity Pen Meter And Probe Care Kit Ph And Conductivity-Water, Temperature And Nutrient Tester (CF, EC, PPM 500/700) With EC Solution And Cleaner For Hydroponics And Indoor Growing(Conductivity Pen + Care Kit)
tk.kri
$33.22
Buffer - Ph 10.00 - Color Coded Blue: Lab, 4 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP6
Grainger
$33.22
Buffer - Ph 10.00 - Color Coded Blue: Lab, 4 L, 1310-73-2/144-55-8/26628-22-8/497-19-8/7732-18-5, 1 Model: 793EP6
Grainger