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PH Maintenence
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General Hydroponics pH Control Kit
$21.45Contains: 8 oz. pH UP 8 oz. pH DOWN 1 oz. indicator & vial Please note that this item must be shipped via FedEx Ground. This item cannot be sent to Alaska, Hawaii, Puerto Rico, Virgin Islands or Internationally. Learn More -
General Hydroponics pH 4.01, pH 7.01, 1500 PPM Solutions
Starting at: $9.85
General Hydroponics™ uses the highest quality reference solutions, allowing growers to calibrate many popular brands of PH, EC and TDS meters (NaCl scale or the 442 scale). General Hydroponics™ technicians check each batch to ensure that our solutions are precisely calibrated and yield reliable readings each time they are used. Learn More -
Control Wizard 24-7 Nutrient Monitor
Starting at: $49.75
The 24–7 Nutrient Monitor™ is a great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature. Both pH and PPM electrodes are placed into the solution needing monitoring. Its large illuminated green LCD display allows easy reading from a distance. This makes it so easy to keep a watch on nutrient tanks by simply walking by! Both pH and PPM are temperature compensated for accurate readings. The electrodes are replaceable at a relatively low price compared to other brands of meters found in its class. Learn More -
Bluelab Truncheon Original Meter EC & PPM
$97.75With its super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's and no on/off buttons to worry about, the Bluelab Truncheon® Nutrient Meter has proven itself as the world's favourite nutrient meter. It is powered by three standard AA batteries. Learn More
