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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Apera GroStar GS1-E Replacement pH Electrode
Regular price $36.00 USDRegular priceUnit price / per$50.99 USDSale price $36.00 USDSale -
Apera GroStar GS2-E Replacement Soil Spear pH Electrode
Regular price $129.00 USDRegular priceUnit price / per$181.99 USDSale price $129.00 USDSale -
Apera GroStar GS3-E Replacement EC Electrode
Regular price $39.00 USDRegular priceUnit price / per$53.99 USDSale price $39.00 USDSale -
Apera GroStar GS4-E Replacement pH/EC Combo Electrode
Regular price $57.00 USDRegular priceUnit price / per$79.99 USDSale price $57.00 USDSale -
Apera GroStar pH Calibration Kit pH 4/7
Regular price $14.00 USDRegular priceUnit price / per$18.99 USDSale price $14.00 USDSale -
Apera GroStar pH Calibration Kit pH 4/7/10
Regular price $21.00 USDRegular priceUnit price / per$28.99 USDSale price $21.00 USDSale -
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Dyna-Gro pH-Up 0-0-5
Regular price $14.00 USDRegular priceUnit price / per$15.99 USDSale price $14.00 USDSale -
HM Digital HydroMaster Portable/Wall Mount/Bench Continuous pH/EC/TDS/Temp
Regular price $253.00 USDRegular priceUnit price / per$359.00 USDSale price $253.00 USDSale -
HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester
Regular price $41.00 USDRegular priceUnit price / per$42.95 USDSale price $41.00 USDSale -
HM Digital PH-200 Waterproof pH/Temperature Meter
Regular price $72.00 USDRegular priceUnit price / per$101.92 USDSale price $72.00 USDSale -
HM Digital Hydromaster Replacement EC/TDS Probe
Regular price $36.00 USDRegular priceUnit price / per$49.99 USDSale price $36.00 USDSale -
HM Digital Replacement pH Sensor Probe for HM-500
Regular price $43.00 USDRegular priceUnit price / per$59.99 USDSale price $43.00 USDSale -
HM Digital TDS-3 Handheld TDS Meter
Regular price $20.00 USDRegular priceUnit price / per$33.99 USDSale price $20.00 USDSale -
HM Digital PH-STOR pH Electrode Storage Solution
Regular price $7.60 USDRegular priceUnit price / per$8.49 USDSale price $7.60 USDSale -
Active Air 3-Way Meter
Regular price $9.00 USDRegular priceUnit price / per$13.74 USDSale price $9.00 USDSale -
Milwaukee Instruments EC40 PRO EC/TDS Nutrient Meter
Regular price $74.00 USDRegular priceUnit price / per$90.20 USDSale price $74.00 USDSale -
Milwaukee Instruments pH 4.01 Calibration Solution
Regular price $10.00 USDRegular priceUnit price / per$11.55 USDSale price $10.00 USDSale -
Milwaukee Instruments pH 7.01 Calibration Solution
Regular price $10.00 USDRegular priceUnit price / per$11.55 USDSale price $10.00 USDSale -
Microbe Life Hydroponics pH UP
Regular price $14.39 USDRegular priceUnit price / per$18.99 USDSale price $14.39 USDSale -
Microbe Life Hydroponics pH DOWN
Regular price $14.39 USDRegular priceUnit price / per$18.99 USDSale price $14.39 USDSale -
P3 International Save a Drop Water Meter
Regular price $15.00 USDRegular priceUnit price / per$19.95 USDSale price $15.00 USDSale -
Hyper-Logic - Chemicals - Low Ph Cleaning Powder - 25 lbs
Regular price $636.00 USDRegular priceUnit price / per$720.75 USDSale price $636.00 USDSale -
Hyper-Logic - Chemicals - High Ph Cleaning Powder - 25 lbs
Regular price $746.00 USDRegular priceUnit price / per$845.50 USDSale price $746.00 USDSale -
Luster Leaf Digital Moisture Meter
Regular price $14.00 USDRegular priceUnit price / per$17.99 USDSale price $14.00 USDSale