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  • ×GT Conductivity EC Standard Calibration Fluid 300ml GT Conductivity EC Standard Calibration Fluid 300ml1 × £3.29

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  • Grow Lights
    • LED Grow Lights
    • Gavita Pro Grow Lighting
    • Propagation Lighting
    • Digital Ballasts
    • Grow Lamps
    • Reflectors
    • Relays, Contactors & Time Switches
    • Hanging, Accessories & Spares
    • View our complete range…
  • Grow Tents &
    Sheeting
    • BudBox Lite Grow Tents
    • BudBox Pro Grow Tents
    • BudBox Pitched Loft Grow Tents
    • Monster Buds Grow Tents
    • Grow Room Sheeting
  • Fans, Filters &
    Air Control
    • Extraction Kits
    • Digital Extraction Kits
    • Duct Fans
    • CarboAir Carbon Filters
    • Rhino Carbon Filters
    • Ducting & Fittings
    • Fan Speed Controllers
    • Circulation Fans & Air Diffusers
    • Grow-Room Heating
    • View our complete range…
  • Grow Systems
    & Pots
    • Plant Pots & Saucers
    • Flexi Tanks & Reservoirs
    • Run-to-Waste Grow Systems
    • Bottom-Fed Hydroponic Systems
    • DWC Hydroponic Systems
    • Dripper Hydroponic Systems
    • NFT Hydroponic Systems
    • Flood & Drain Hydroponic Systems
    • Aeroponic Systems
    • View our complete range…
  • Nutrients &
    Boosters
    • Canna Nutrients
    • Dutch Pro Nutrients
    • Monkey Nutrients
    • Mills Nutrients
    • BioBizz Nutrients
    • Buddhas Tree Nutrients
    • View our complete range…
  • Growing Media
    • Clay Pebbles
    • Soil & Organic Medias
    • Coco
    • Rockwool
    • Perlite
    • Propagation Media
    • NFT Spreader Matting
    • View our complete range…
  • Grow Tools &
    Accessories
    • Equipment Hanging
    • Beakers, Jugs, Syringes & Pipettes
    • Sticky Tapes
    • Time Switches
    • Trimming, Drying & Curing
    • Odour Control
    • Plant Support
    • Grow-Room Heating
    • CO2 Enrichment
    • View our complete range…
  • Propagation
    • Complete Propagation Kits
    • Propagators
    • Aeroponic Propagators
    • Propagation Lighting
    • Propagation Media
    • Propagation Nutrients & Cloning Products
    • Propagation Tools
  • Pest & Disease
    Control
    • Sulphur Vaporisers
    • General Pest Control
    • Spider Mite Control
    • Thrip Control
    • Sciarid Fly / Fungus Gnat Control
    • Root Disease Control
    • Leaf & Flower Mold / Rot Control
    • Spray Bottles / Spray Guns
    • View our complete range…

Meters

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Air Comfort Bluetooth Temperature and Humidity Sensor

Air Comfort Bluetooth Temperature and Humidity Sensor

£27.08
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Bluelab Combo Meter

Bluelab Combo Meter

£191.63
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Bluelab EC Pen - Temperature Compensated Digital EC Tester

Bluelab EC Pen – Temperature Compensated Digital EC Tester

£66.63
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Bluelab Guardian Monitor (Conductivity / Temperature / pH)

Bluelab Guardian Monitor (Conductivity / Temperature / pH)

£233.29
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Bluelab Multimedia pH Meter

Bluelab Multimedia pH Meter

£208.29
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Bluelab pH & EC Meter Cleaning and Calibration Combined Kit

Bluelab pH & EC Meter Cleaning and Calibration Combined Kit

£20.79
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Bluelab pH Pen - Temperature Compensated Digital pH Tester

Bluelab pH Pen – Temperature Compensated Digital pH Tester

£70.79
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Bluelab Replacement pH Probe for Combo / Guardian meters

Bluelab Replacement pH Probe for Combo / Guardian meters

£54.13
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Bluelab V2 Truncheon CF/EC/PPM Meter

Bluelab V2 Truncheon CF/EC/PPM Meter

£74.96
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Grow Gadget Budget EC Meter

Grow Gadget Budget EC Meter

£10.41
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Grow Gadget Budget PH Meter

Grow Gadget Budget PH Meter

£10.41
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GT Conductivity EC Standard Calibration Fluid 300ml

GT Conductivity EC Standard Calibration Fluid 300ml

£3.29
Add to basket
Nutriculture pH Kit 4 - 10

Nutriculture pH Kit 4 – 10

£2.46
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pH Buffer 4

pH Buffer 4

£3.29
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pH Buffer 7

pH Buffer 7

£3.29
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