Bluelab TDS Truncheon is a favourite nutrient meter! It has a super tough, high quality, fully waterproof design, no calibration required, daylight readable blue LED's and no on/off buttons to worry about.

An economical, entry level, micro-sized, portable reverse osmosis system. 0.75 gal per day solution. Includes KDF/carbon pre-filter, 75 GPD membrane, garden hose connector, ¼" shut off valve & pressure gauge.

NUTRI+® PHOSPHORIC ACID is a highly concentrated solution used to lower the pH level of a plant nutrient solution.

Cyco pH Down lowers the total pH value of the made nutrient solution. This product lowers nutrient pH. Recommended pH for most plants is 5.5 to 6.5.

Florasol pH4 calibration solution is for pH-meters. A monthly calibration of your equipment is essential to obtain precise results.

Florasol pH7 calibration solution is for pH-meters. A monthly calibration of your equipment is essential to obtain precise results.

HI70032P is a premium quality 1,382 mg/L (ppm) TDS calibration solution standardized with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM in deionized water for analytical use in accordance with ISO 3696/BS3978.

To ensure ongoing accuracy, use Bluelab 2.77 EC Conductivity Standard Solution - 500 ml to test your Bluelab EC/PPM products.

Built with affordable & advanced technology, the replaceable double-junction Bluelab pH Probe has been designed with longevity in mind.

Green Gold Electrode Cleaning Solution works to clean both, pH & conductivity meters. Removes both organic & inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter & keep it working. Compatible with most testers.

High quality solutions formulated for calibrating pH probes. Bluelab® calibration solutions are essential for use with all Bluelab® products.

Luster Leafs Rapitest Moisture Meter instantly indicates when plants need water, how much light plants are receiving and no batteries are required.