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Hanna Instruments GroLine pH 7.01 Buffer – Single 20mL Sachet
Original price was: $1.99.$1.45Current price is: $1.45.
General Hydroponics pH Test Indicator Liquid – 8 Ounce
Original price was: $14.53.$9.14Current price is: $9.14.
Milwaukee PH55 Waterproof pH & Temperature Tester
Original price was: $77.90.$63.20Current price is: $63.20.
Milwaukee MW802 PRO 3-in-1 Combo Meter
Original price was: $294.40.$238.83Current price is: $238.83.
Milwaukee EC59 Waterproof 3-in-1 EC/TDS/Temp Tester
Original price was: $77.90.$63.20Current price is: $63.20.
Hanna Instrument pH/EC/TDS Multiparameter Probe
Original price was: $183.73.$135.98Current price is: $135.98.
Hanna Instruments GroLine Nutrient Monitor with Probe
Original price was: $495.00.$454.10Current price is: $454.10.
Hanna Instrument HI9813-6 Replacement Electrode Probe
Original price was: $149.95.$145.13Current price is: $145.13.
GroLine pH 4.01 Calibration Buffer – 20mL Sachet
Original price was: $1.99.$1.45Current price is: $1.45.
Hanna DiST 3 Waterproof Low-Range EC Tester
Original price was: $83.30.$57.40Current price is: $57.40.About Meters | Testers | Monitors
There are many brands to consider when it comes to PH meters  and or EC meters. Here at HTGSupply we carry the best, Hanna Instruments and Bluelab. These companies have proven themselves to be worthy of the hydroponic industry. Many inferior pH meters require constant calibration; this is time consuming and does not have to be. Hanna and Bluelab hold their calibration making them very user friendly. Hydroponic growers will enjoy a few nice features you will just not find with inferior pH meters. Rest assured the meters HTGSupply carries are quality units that will last. Only trust your precious hydroponic crops with Bluelab or Hanna pH meters.