pH & TDS Testers

Bluelab pH Pen. Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right.
Bluelab pH Pen
  • $117.00
Bluelab Combo Meter. The Bluelab Combo Meter is a portable pH, conductivity and temperature meter all in one.
Bluelab Combo Meter
  • $300.00
Bluelab Truncheon Nutrient Meter
Bluelab Truncheon Nutrient Meter
  • $165.00
Bluelab pH Probe. The Bluelab pH Probe is a replacement pH probe (electrode) suitable for use with Bluelab products that test the pH value of a solution.
Bluelab pH Probe
  • $95.00
The Hanna Instruments HI 9813-6 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
Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature
  • $385.95
General Hydroponics pH Test Indicator. General Hydroponics pH Test Indicator makes testing samples easy.
General Hydroponics pH Test Indicator
  • $11.00