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Home Hydroponics Water Quality Control Testing & Monitoring

Testing & Monitoring

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Gh Phdown

General Hydroponics pH Down

Original price was: $10.59.Current price is: $6.78.
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Gh Phup

General Hydroponics pH Up Liquid

Original price was: $10.59.Current price is: $6.78.
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General Hydroponics Ph Control Kit For Hydroponics

GH pH Control Kit

Original price was: $22.75.Current price is: $13.80.
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Advanced Nutrients Ph Down

Advanced Nutrients pH Down

Original price was: $14.18.Current price is: $10.64.
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Hanna Quick Calibration Solution

Hanna Quick Calibration Solution

Original price was: $1.56.Current price is: $1.34.
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Advanced Nutrients Ph Up

Advanced Nutrients pH UP

Original price was: $14.18.Current price is: $10.64.
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Hanna Instruments HI9814 Meter

Hanna GroLine Waterproof Portable Meter

Original price was: $324.95.Current price is: $239.95.
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Hanna Groline

Hanna GroLine pH Meter

Original price was: $59.00.Current price is: $52.26.
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Bluelab Combo Replacement Ph Probe

BlueLab Combo pH Probe

Original price was: $92.00.Current price is: $71.76.
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Bluelab 7 Solution

Bluelab pH 7.0 Solution

Original price was: $11.33.Current price is: $8.84.
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Hanna Cleaning Solution2

Hanna Cleaning Solution

$1.32
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Gh Calibration Solution 7

GH pH 7.0 Calibration Solution

Original price was: $25.75.Current price is: $18.95.
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Bluelab 4 Solution

Bluelab pH 4.0 Solution

Original price was: $11.33.Current price is: $8.84.
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Bluelab Ph Pen

BlueLab pH Pen

Original price was: $125.00.Current price is: $97.50.
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Hanna Groline Waterproof Ph Meter

Hanna GroLine Waterproof pH Meter

Original price was: $79.00.Current price is: $74.95.
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Hanna Groline Soil Ec Tester

Hanna Groline Soil EC Tester

Original price was: $149.95.Current price is: $129.95.
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BlueLab Guardian Monitor with Wifi

BlueLab Guardian Monitor with Wifi

Original price was: $459.00.Current price is: $358.02.
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Bluelab Ppm Pen

BlueLab PPM/Conductivity Pen

Original price was: $105.00.Current price is: $81.90.
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Hanna Instruments Quick Cal 500mL

Hanna Instruments Quick Calibration Solution – 500ml

Original price was: $24.05.Current price is: $22.95.
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Gh Calibration Solution 42

GH pH 4.01 Calibration Solution

Original price was: $25.75.Current price is: $11.97.
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Hanna Groline Combo Phec Meter

Hanna GroLine Combo pH/EC Meter

Original price was: $225.00.Current price is: $175.75.
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General Hydroponics pH Test Kit 8oz

General Hydroponics pH Test Kit – 8 Ounce

Original price was: $14.53.Current price is: $8.82.
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Bluelab pH KCI Storage Solution 100ml

Bluelab pH KCI Storage Solution

$12.58
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Bluelab Probe Care Kit Ph

BL Probe Care Kit – pH

Original price was: $25.00.Current price is: $19.50.
Add to Cart

About 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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    Your Cart
    Mcx4 Controller
    MCX4 Climate Control System
    1 X $719.00 = $719.00
    Grodan Macro Plugs 2000-pack
    Grodan Rockwool Stonewool Macro Plugs - 2000 Pack
    1 X $450.75 = $450.75
    Twister T4 Trimmer Front View
    Twister T4 Trimmer - Variable
    1 X $8,606.00 = $8,606.00
    Olivia's Cloning Gel - 8 Ounce
    Olivia's Cloning Gel - 8 Ounce
    2 X $30.95 = $61.90
    Co2 Enrichment Kit
    Complete Digital CO2 Release System
    1 X $300.02 = $300.02
    34 Tubing
    Heavy-Duty 3/4" FLEXIBLE Black Tubing - 25 Foot
    1 X $17.95 = $17.95
    10" Sediment Filter - 5mic
    10 Inch Sediment Filter
    2 X $4.47 = $8.94
    GrowBright 6 Combo
    GrowBright 6" HV Inline Fan & Carbon Filter Combo
    1 X $120.18 = $120.18
    Botanicare Bulkhead Kit Gallery
    Botanicare Bulkhead Kit
    1 X $7.29 = $7.29
    Agromax Raw 65 Full Spectrum Led
    AgroMax RAW 65 3000K LED
    1 X $97.47 = $97.47
    Rhizoflora Purpinator 55 Gallon
    Rhizoflora Purpinator - 55 Gallon
    1 X $1,407.88 = $1,407.88
    Hortomallas Trellis 5ft x 4920ft
    Hortomallas 6" Mesh Trellis Netting - 5' x 4920'
    1 X $449.95 = $449.95
    HighTemp Shutdown W/15m Delay
    HLC 3 HID Controller / Heating Thermostat w/ Delay
    3 X $61.74 = $185.22
    Floraflex Barbed Insert 12Pk
    Floraflex 1/4" Barbed Insert 12pk
    1 X $3.21 = $3.21
    25 Raindrip Poly Tubing 50Foot
    Raindrip 1/4" Black Poly Tubing - 50 Foot
    1 X $6.95 = $6.95
    0.375 In. Hydro Logic Poly Tubing Blue - 50 Foot
    3/8" Hydro Logic Poly Tubing Blue - 50 Foot
    1 X $16.95 = $16.95
    10" Carbon Block Filter - 5mic
    10 Inch Carbon Block Filter - 5 Micron
    2 X $9.95 = $19.90
    1/8"x8' Rope Ratchet 75lb
    AgroMax Rope Ratchets - 1/8" x 8 Foot - 75lb Max Each
    2 X $8.95 = $17.90
    Lin Irblock
    4 Foot x 50 Foot IR Block
    1 X $22.47 = $22.47
    Grodan A-OK 1.5 Starter Plug
    Grodan A-Ok 1.5 Inch Starter Plugs - Sheet of 98 Plugs
    1 X $15.79 = $15.79
    Autopilot Desktop CO2 Monitor, Memory & Logger
    Autopilot Desktop CO2 Monitor, Memory & Logger
    1 X $142.40 = $142.40
    Kaya Coco Perlite 70/30 Case - 3 Gallons
    Kaya Coco Perlite 70/30 Case - 3 Gallons
    1 X $26.94 = $26.94
    Grodan A Ok Starter Plugs 1 Inch
    Grodan A-Ok 1 Inch Starter Plugs Sheet of 200
    1 X $24.24 = $24.24
    Bush Doctor Bembe Gallon
    FoxFarm Bush Doctor Bembe - Gallon
    1 X $62.16 = $62.16
    Dyna-Gro Pure Neem Oil Quart
    Dyna-Gro Neem Oil - 32 Ounce
    1 X $38.95 = $38.95
    AgroMax UV-C T5 Bulb
    AgroMax UV-C Bulb - 4 Foot
    1 X $8.62 = $8.62
    Dnc Water Only Super Soil Pallet
    DNC Great Lakes Water Only Soil - Pallet of 75
    1 X $1,500.00 = $1,500.00
    Rockwool Tray Plug Gallery
    Rockwool Tray Plug
    1 X $0.36 = $0.36
    Triminator Dry Gallery View
    Triminator Dry Trimmer
    2 X $3,375.00 = $6,750.00
    The Agromax Digital Cooling Controller
    The AgroMax Digital Cooling Controller
    1 X $12.49 = $12.49
    Grodan Gro-Block 4x4x2.5
    Grodan Improved 4 Inch Gro-Block Rockwool Cubes - Strip of 6
    1 X $7.98 = $7.98
    GreenBroz 420 Alchemist Trichome Extraction Machine
    GreenBroz 420 Alchemist Trichome Extraction Machine
    1 X $12,175.00 = $12,175.00
    120v Dual Outlet Mech Timer
    High Yield 2 Outlet Mechanical Timer
    1 X $4.95 = $4.95
    Disposable Pipette 3Ml
    Disposable Pipettes - 3ml
    1 X $0.23 = $0.23
    Rw Aok Plugs
    Grodan A-Ok 1.5 Inch Starter Plugs Sheet of 98
    1 X $21.93 = $21.93
    Cultiwool Slab Bulk Pallets
    Cultiwool 8 Inch Slab | Bulk Pallet - 192 Pcs.
    1 X $1,591.20 = $1,591.20
    Antelco .5 Inch Valve
    Antelco 3/4 Inch Valve
    1 X $3.49 = $3.49
    Cultiwool Slab Bulk Pallets
    Cultiwool 6 Inch Slab | Bulk Pallet - 256 Pcs.
    1 X $1,729.92 = $1,729.92
    Heavy 16 Finish 1 Quart
    Heavy 16 Finish - Quart
    1 X $21.94 = $21.94
    Usa Lab 10L Single Jacketed Glass Reactor Turnkey System
    USA Lab 10L Glass Reactor Turnkey System
    1 X $16,847.00 = $16,847.00
    Spin Trim
    Spin & Trim
    1 X $199.81 = $199.81
    Cactus and Succulent Blend Organic Mechanics
    Cactus & Succulent Blend 8qt.
    1 X $8.99 = $8.99
    Bluelab Ph Pen
    BlueLab pH Pen
    1 X $97.50 = $97.50
    Titanium Bonsai Scissors 6"
    AgroMax Titanium Bonsai Trimmer - 6" Blade
    1 X $9.72 = $9.72
    Plantit
    Plant!t Expanded Clay Pellets - 40 L
    1 X $32.35 = $32.35
    AgroMax Double Ended 1000w HPS
    AgroMax Double Ended 1000 Watt HPS Lamp
    1 X $59.95 = $59.95
    Heavy 16 Roots 2.5 Gallon
    Heavy 16 Roots - 2.5 Gallon
    1 X $358.30 = $358.30
    3.5 Gallon Hydroponics Bucket
    3.5 Gallon Black Bucket
    1 X $4.95 = $4.95
    Htg Black White Poly
    10 ft. x 10 ft. Black and White Poly Film Sheet
    1 X $6.49 = $6.49
    Pro Cal 3 Gal Nursery Pot
    Pro Cal Premium Nursery Pot - 3 Gallon
    1 X $2.49 = $2.49
    AgroMax Grow Tent Floor Liner - Mother Keeper
    AgroMax Grow Tent Floor Liner - Mother Keeper (51.5" x 22.5")
    1 X $20.00 = $20.00
    HTG Plant Markers 25pk
    HTG Supply Plant Markers - 25 Pack
    1 X $1.88 = $1.88
    phatsack-slucket10
    10 Gallon Slucket™ Fabric Pot Insert
    1 X $3.00 = $3.00
    Htg Large Rosin Bags Micron 45
    45 Micron 2.5" x 6" Rosin Bags - 10 Pack
    1 X $5.96 = $5.96
    Foam Collar - Black
    HTG Supply Black Foam Clone Collars - Pack of 64
    1 X $15.99 = $15.99
    Hanna Groline Soil Ec Tester
    Hanna Groline Soil EC Tester
    1 X $129.95 = $129.95
    Subtotal $54,462.85
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