1500 ppm Calibration Solution 8 oz
General Hydroponics uses the highest quality electronic meter reference solutions. Growers can use o..
1500PPM Packet
This item is sachets Available in 220ml bottles and 20ml sachets. Traditional buffer solutions are p..
1500PPM Solution, 230ml
Hanna Instruments' solution, ideal for gardening, laboratory work, and field experiments, comes in a..
1500PPM TDS Sol 16oz
Hanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments..
2.77 EC Conductivity Sol 250ml
Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab cal..
2.77 pH Bluelab Cali Solution
Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab cal..
4.0 pH Calib Solution 20 ml
Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab cal..
7.0 pH Cali Solution 20 ml
Calibration and conductivity standard solutions... a must in every grower's toolbox. The Bluelab cal..
Active Aqua Dual Inline TDS Meter
Dual range meter displays TDS levels of feed water and product water with in and out electrode probe..
APCEPH1 PH Replacement Probe
APCEPH1 PH Replacement Probe.6 months..
AquaPro TDS/Temperature Meter
FEATURES Measures total dissolved solids (TDS) and temperature. Automatic Temperature Compens..
Batteries for pH/TDS pen, 1.4v, Pack of 4
Stock up on batteries for your pH/TDS pen and never be without. The tiny battery discs hardly take u..
Bluelab 2.77 EC Con.Sol.500 ml
The 2.77 EC Conductivity solution is used as a reference or checking solution to ensure you have ade..
BlueLab Combo Meter
Hydrofarm;Bluelab Combo Meter;Conductivity pH and temperature meter;plant nutrients;measuring soil n..
Bluelab Commercial Truncheon Meter
Bluelab;Commercial Truncheon Meter;pH meter;EC meter;CF meterCommercial meter designed for hydroponi..
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