pH & TDS Testers

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Bluelab pH Pen. This product is shown on a slight angle, white body, blue interior and pen cap with digital window. The Bluelab pH Pen measures the temperature of the solutions, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 18 - 22˚C or 65 - 72˚F is recommended.
Bluelab pH Pen
  • $152.65
Bluelab Conductivity Pen
  • $131.00
Bluelab Combo Meter. The Bluelab Combo Meter is a portable pH, conductivity and temperature meter all in one. If you are experiencing problems with yellow leaves, or slow stunted growth, the Bluelab Combo Meter will soon tell you if each parameter is within the plant's requirements. Shown here is a close up view of the blue lab combo meter: two probes, a Bluelab pH Probe, a Bluelab Conductivity/Temperature Probe and digital screen
Bluelab Combo Meter
  • $290.00
Bluelab Truncheon Nutrient Meter. This product is shot on a slight angle on a whote background. The nutrient meter is blue and white and cylindrical in shape with a black fabric handle. To take a reading of your solution - simply place the probe head into the solution and the reading is indicated by the flashing lights. Calibration of the Truncheon® Nutrient Meter is not required.
Bluelab Truncheon Nutrient Meter
  • $152.95
The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution. Unfortunately pH Probes do not last forever as they age through normal use and will eventually fail. With good care and use (keeping the probe tip wet and cleaning once a month) you will extend its life. This product is shot on a slight angle on a white background, probe is clear with black cord.
Bluelab pH Probe
  • $94.95
Bluelab Probe Care Kit – pH and Conductivity
  • $27.00
Nutri+ pH Quickcheck Tester. This product is rectangular in shape, has a white body, black top and bottom. The digital face is green with black numbers. This product’s dimensions are 151 x 33 x 20 mm and weighs 53 g.
Nutri+ pH Quickcheck Tester
  • $36.00
Nutri+ TDS Quickcheck Tester. This product is rectangular in shape, has a green body, black top and bottom. The digital face is clear with black numbers. This product’s dimensions are 151 x 33 x 20 mm and weighs 53 g.
Nutri+ TDS Quickcheck Tester
  • $30.75
Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature is a Portable pH/EC/TDS/Temperature Meter with CAL Check Feature is a versatile, water resistant, multipara meter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. This product is black in colour with a clear face, two rows of black buttons down the centre and a white probe off to the right.
Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature
  • $245.00
General Hydroponics pH Test Indicator comes in clear cylindrical bottle with a white dropper lid, product is green in colour, also comes with a clear cylindrical test jar with a white lid. Shown here with a yellow liquid inside.
General Hydroponics pH Test Indicator
  • $15.00
Nutri+ Florasol Calibration Solution TDS 1382 PPM 500ml
  • $14.95