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Testing & Monitoring

Know your water before you grow! HTG Supply’s selection of water quality testing and monitoring equipment is key to successful home cultivation. Not all water is created equal, and when growing indoors it is of the utmost importance to know the quality of the water you’re feeding your plants. Testing and monitoring equipment can detect pH and total dissolved solids (TDS) issues before they happen, and the knowledgeable gardener can make quick decisions with that instant information. Shop now to find the right equipment for your water testing.

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Product Filters
Weight Limit
Wattage
Voltage
System Type
Style
Speed Control Compatible
Spectrum Type
Fitting Size
Flange Size
Reflector Size
Size
Socket Type
Shape
Reversible
Reflector Type
Probe Type
Portability
Planting Sites
Output Control
Outlets
Number of Lamps
Module Capacity
Material
Light Type
Light Source
Lamp Drive Frequency
HID Type
HID Bulb Type
Fitting Type
Component Type
Chip Type
Base Type
Ballast Component Type
Application Type
Application Type
Growing Method
GPH
Fixture Configuration
Fan CFM
Configuration
Color Temp. (Kelvin)
CFM
Bulb Length
Built-In Socket
HM Digital Handheld TDS Tester Model TDS-3
HM Digital Handheld TDS-3 Water Quality Meter
$23.93
Bluelab pH Probe Inline
Bluelab pH Probe Inline
$170.79
Bluelab Guardian Monitor Connect
BlueLab Guardian Monitor Connect
$309.95
BlueLab pH Meter
BlueLab pH Meter
$181.44
Sunleaves Three-Way Meter
Sunleaves Three-Way pH/Moisture/Light Meter
$12.00
Hanna DiST 3 Waterproof EC Tester
Hanna DiST 3 Waterproof Low-Range EC Tester
$61.95
Gh Calibration Solution 7
GH pH 7.0 Calibration Solution
$7.95$18.95
Gh Phdown
General Hydroponics pH Down
$6.45
Hanna Quick Calibration Solution
Hanna Quick Calibration Solution
$1.34
Hanna-Gro-Line-pH-Calibration-Solution-7
Hanna 7.0 Calibration Solution
$1.03
Hanna-Gro-Line-pH-Calibration-Solution-4
Hanna 4.0 Calibration Solution
$1.02$19.95
Gh Phup
General Hydroponics pH Up Liquid
$6.45

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