Skip to content
pH Control
pH refers to the concentration of hydrogen ions in your growing medium and should be tested regularly to ensure that it remains at a level of 7. Hydroponic systems require more regular testing and should be kept between 5.2-6.3.
Learn more:
- How do I adjust my pH?
- What is nutrient lockout and how can I prevent it?
Back to Climate Control
Save $25.00
Save $110.04
BlueLab
Bluelab Multimedia pH Meter (Leap Probe Included) For Plant Health
Sale price$339.95
Regular price$449.99
In stock
Save $449.05
Save $120.04
BlueLab
Bluelab Combo Plus Meter - Probe Included For Plant Health
Sale price$359.95
Regular price$479.99
In stock
Save $30.00
Alfred
Alfred Digital pH Meter Model PH-1 For Plant Health
Sale price$59.99
Regular price$89.99
In stockSave $50.00
Save $25.00
hm
HM Digital HydroTester 80s - The Ultimate EC/TDS/TEMP Meter For Plant Health
Sale price$64.99
Regular price$89.99
In stockSave $36.00
Save $30.00
TrolMaster
TrolMaster Hydro-X Device Station 6-Pack (1x DSC, 1x DSH, 1x DST, 3x DSP)
Sale price$469.99
Regular price$499.99
In stock
Save $1.00
Alfred
Alfred's pH Paper Test Strips (150 strips) For Plant Health
Sale price$10.99
Regular price$11.99
In stock
Save $6.12
Advanced Nutrients
Advanced Nutrients pH Up & Down 1L Bundle
Sale price$41.87
Regular price$47.99
In stockSave $50.00
BlueLab
Bluelab Growers Tool Box pH Pen & Conductivity and Temperature Pen for Water
Sale price$249.99
Regular price$299.99
In stockSave $64.04
Save $15.04
BlueLab
Bluelab Meter Carry Case for Bluelab Combo Meters
Sale price$69.95
Regular price$84.99
In stock