Meters

Grow Tools Temperature & Humidity Meter

From £9.95

Digital Water Thermometer

From £4.95

Bluelab Nutrient Truncheon

From £74.95

Bluelab pH Pen

From £69.95

Grow Gadgets pH Pen

From £24.95

Grow Gadgets EC Pen

From £24.95

pH Test Kit

From £4.95

Growth Technology pH Probe Cleaner

From £5.95

Growth Technology pH probe Refill & Storage

From £5.95