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PH Meters, TDS / PPM / EC Meters & Calibration

General Hydroponics PH UP and Down Kit - 8oz
Sale
General Hydroponics PH Down
General Hydroponics PH Down
$14.95 - $37.95
General Hydroponics PH Up
General Hydroponics PH Up
$14.95 - $37.95
Future Harvest PH Up
Future Harvest PH Up
$14.95 - $39.95
Future Harvest PH Down
Future Harvest PH Down
$14.95 - $39.95
Techna Flora - pH UP 1L
TechnaFlora - pH Down 1L
Citric pH Down
Sale
Citric pH Down
$6.00 $10.95
pH Test Strips (4.5-9) Unit
Active Aqua pH Test Kit 1 oz
TDS Meter
TDS Meter
$14.95
Digital pH Pen Meter - pH Tester
HM Digital COM-80 EC/TDS Meter
HM Digital PH-80 Meter
Bluelab PH Pen
Bluelab PH Pen
$139.95
Bluelab Conductivity Pen - PPM/TDS/EC
Bluelab Soil pH Pen
Bluelab Combo Meter - EC/PPM, PH & Temp
Bluelab Multimedia PH Meter & Leap Probe
Bluelab Combo Meter Plus - EC/PPM, PH & Temp
Bluelab Guardian Monitor
Sale
Bluelab Guardian Monitor
$449.95 $499.95
Bluelab Guardian Monitor Inline Connect
Bluelab pH Controller
Bluelab Truncheon TDS (PPM) Nutrient Meter
Bluelab pH Probe
Bluelab Leap PH Probe for Solution & Substrates
Bluelab Conductivity & PH Probe Care Kit
Bluelab Conductivity Probe Care Kit
Bluelab PH Probe Care Kit
Bluelab PH Probe KCL Storage Solution
blue lab pH calibration solution 4.0 - 500ml
Bluelab PH Calibration Solution 7.0
Bluelab 2.77 EC Conductivity Standard Solution
Hanna HI98301 TDS / PPM Tester DiST 1 Waterproof
Hanna HI98107 Waterproof pH Tester
Hanna HI 98129 PH / EC / TDS Tester Combo (Black)
Hanna GroLine pH/EC/TDS/Temp Meter - HI9814
Sale
Hanna GroLine Hydroponic Monitor HI981420
Hanna Hi 70300L Storage Solution 500 ml
Hanna HI7061L PH Probe Electrode Cleaner 500ml
Hanna pH/EC Solution Quick Calibration 230ml
Hanna HI1285-7 pH/EC/TDS Probe for HI9814
Hanna HI1285-8 pH/TDS/EC Probe for HI981420
Nutri+ Florasol Storage Solution 500ml
Nutradip 1000 PPM EC/TDS Calibration Solution - 500ml
Nutradip PH 7 Calibration Solution - 500ml
Nutradip PH 4 Calibration Solution - 500ml
Nutradip PH/TDS Calibration Kit 3-Pack

PH Meters, TDS / PPM / EC Meters & Calibration

PH meters allow you to monitor the PH of your water or grow medium to ensure proper nutrient uptake. TDS (total dissolved solids) meters monitor PPM (Parts Per Million) or EC (Electrical Conductivity), this allows you to measure the amount of nutrients in your water when you are mixing your feeding solution.

PH Meters, TDS / PPM / EC Meters & Calibration

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