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Grow Gadgets EC Pen

From £24.95
This basic EC Pen displays the Electrical Conductivity of your nutrient reservoir.

For a more advanced option go for the Bluelab Nutrient Truncheon

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Hydro Crop Shop
250 Water Road
Wembley
London
HA0 1HX
020 3488 0419
07507 883 374

sales@hydrocropshop.co.uk