Collection: Meters & Solutions
Shop our wide variety of water testing meters and calibration solutions to keep your garden's PH/EC/PPM/TDS in proper ranges.
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Bluelab 7.0 pH Calibration Solution
Regular price From $1.72 USDRegular priceUnit price / per$1.92 USDSale price From $1.72 USDSale -
Bluelab 4.0 pH Calibration Solution
Regular price From $1.72 USDRegular priceUnit price / per$1.92 USDSale price From $1.72 USDSale -
Bluelab pH Probe KCl Storage Solution
Regular price From $13.00 USDRegular priceUnit price / per$14.70 USDSale price From $13.00 USDSale -
General Hydroponics pH Control Kit
Regular price $15.00 USDRegular priceUnit price / per$22.98 USDSale price $15.00 USDSale -
Bluelab® Guardian Monitor Connect In-Line
Regular price From $162.00 USDRegular priceUnit price / per$210.94 USDSale price From $162.00 USDSale -
Hanna GroLine Waterproof Portable pH/EC/TDS Combo Meter
Regular price $325.00 USDRegular priceUnit price / per$325.00 USDSale price $325.00 USD -
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Bluelab® Soil pH Pen
Regular price $162.00 USDRegular priceUnit price / per$210.94 USDSale price $162.00 USDSale -
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Bluelab pH Pen
Regular price $97.00 USDRegular priceUnit price / per$126.14 USDSale price $97.00 USDSale -
Hanna GroLine Hydroponic Waterproof Pocket pH/EC/TDS/Temperature Tester
Regular price $260.00 USDRegular priceUnit price / per$260.00 USDSale price $260.00 USD -
Hanna GroLine Hydroponics pH Tester
Regular price $70.00 USDRegular priceUnit price / per$70.00 USDSale price $70.00 USD -
Bluelab® Guardian Monitor
Regular price From $30.74 USDRegular priceUnit price / per$30.74 USDSale price From $30.74 USD -
Apera GroStar GS4 pH/EC Combo Pen
Regular price $127.00 USDRegular priceUnit price / per$178.99 USDSale price $127.00 USDSale -
General Hydroponics® pH Up Liquid
Regular price From $8.47 USDRegular priceUnit price / per$9.72 USDSale price From $8.47 USDSale -
Bluelab pH & Conductivity Starter Pack
Regular price $145.00 USDRegular priceUnit price / per$169.00 USDSale price $145.00 USDSale -
Hanna GroLine EC/PPM Pen
Regular price $100.00 USDRegular priceUnit price / per$100.00 USDSale price $100.00 USD -
Hanna GroLine Direct Soil EC Tester Pen
Regular price $150.00 USDRegular priceUnit price / per$150.00 USDSale price $150.00 USD -
Hanna GroLine Quick Calibration Solution
Regular price From $2.50 USDRegular priceUnit price / per$2.50 USDSale price From $2.50 USD -
Bluelab Original Truncheon® Nutrient Meter
Regular price $121.00 USDRegular priceUnit price / per$157.94 USDSale price $121.00 USDSale -
Bluelab Nutrient Probe Care Kit Conductivity
Regular price $24.00 USDRegular priceUnit price / per$30.74 USDSale price $24.00 USDSale -
Bluelab Probe Care Kit - pH
Regular price $18.00 USDRegular priceUnit price / per$23.32 USDSale price $18.00 USDSale -
Bluelab® Connect Product Suite 2
Regular price From $129.00 USDRegular priceUnit price / per$168.54 USDSale price From $129.00 USDSale -
2-Way pH & Moisture Meter
Regular price $8.81 USDRegular priceUnit price / per$11.80 USDSale price $8.81 USDSale -
Bluelab® Pulse Multimedia EC/MC Meter
Regular price $259.00 USDRegular priceUnit price / per$338.14 USDSale price $259.00 USDSale -
General Hydroponics® pH Down Liquid
Regular price From $8.47 USDRegular priceUnit price / per$9.72 USDSale price From $8.47 USDSale