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Digital pH meters for hydroponic nutrient monitoring

Water Systems & Filtration

HM Digital TDS-3 Pen Style TDS/EC/Temp Meter

$19.95
Organitek Amplify Microbial Blend

Additives & Supplements

Organitek Amplify Microbial Blend

Price range: $19.00 through $1,999.00
Philips Greenpower CMH Lamp – 315W 3100k

Grow Lights

Philips Greenpower CMH Lamp – 315W 3100k

$108.95
Philips Greenpower CMH Lamp – 315W, 4200K°

Grow Lights

Philips Greenpower CMH Lamp – 315W, 4200K°

$108.95
Philips HPS Agro Plus DE Lamp – 1000W

Grow Lights

Philips HPS Agro Plus DE Lamp – 1000W

$149.95
The Dimlux Relative Humidity Sensor - Long

Plant Care & Accessories

The Dimlux Relative Humidity Sensor – Long

$54.95
The Dimlux Relative Humidity Sensor - Short

Plant Care & Accessories

The Dimlux Relative Humidity Sensor – Short

$49.95