Catching Problems Before Your Plants Do 🔎

Being a responsible grower means monitoring all aspects of your grow, and we have the tools to help.

This email was sent

May 19, 2026 4:30am EDT

Is this your brand on Milled? Claim it.

Light Meters

TDS / PPM / EC Meters

pH Meters

Thermometers & Hygrometers

Milwaukee Instruments

Bluelab

Not sure what you need?

BREAKING NEWS

TALK TO A GROW EXPERT

Built for growers. Backed by experts.

Catching Problems Before Your Plants Do 🔎

Being a responsible grower means monitoring all aspects of your grow, and we have the tools to help.

Light Meters

TDS / PPM / EC Meters

pH Meters

Thermometers & Hygrometers

Milwaukee Instruments

Bluelab

Not sure what you need?

BREAKING NEWS

TALK TO A GROW EXPERT

RELATED ARTICLES

Recent emails from Hydrobuilder

Catching Problems Before Your Plants Do 🔎

Being a responsible grower means monitoring all aspects of your grow, and we have the tools to help.

Light Meters

Your fixtures say one thing, your canopy tells another. PPFD and DLI meters from Apogee and Pulse verify what your plants are actually receiving.

TDS / PPM / EC Meters

Know exactly what's in your reservoir. EC and PPM meters let you dial in nutrient concentration and catch issues before they show on your plants.

pH Meters

Nail your pH before every feed. Get fast and accurate readings with pH meters allowing you to protect your plants' nutrient uptake.

Thermometers & Hygrometers

Temperature and humidity data you can act on. Monitor your canopy environment in real time and keep VPD where it belongs at every stage.

Milwaukee Instruments

Lab-Grade Accuracy. Field-Ready Durability.

Milwaukee is our co-op partner and one of the most trusted names in grow room testing. Quick-check pH pens, EC/TDS testers, all-in-one combination meters, automated dosing monitors — Milwaukee covers every testing need from bench to canopy. Built to take a beating. Calibrated to be believed.

Bluelab

Purpose-Built for Growers

Bluelab designs every meter with one grower in mind — the one who can't afford a bad reading at the wrong moment. pH pens, truncheon EC meters, combination meters, and continuous monitors that stay in the reservoir and keep watch so you don't have to.

Not sure what you need?

Our FREE VPD Calculator will help you dial in your temperature and humidity targets, arming you with the knowledge of what exactly to measure.

BREAKING NEWS

On April 23, 2026, the DOJ officially moved state-licensed medical cannabis from Schedule I to Schedule III under federal law. Find out how this affects you and the steps you need to take under this new policy change!

TALK TO A GROW EXPERT

You have the questions, our grow experts have all of the answers. They're here to help you to make sure you get the most from your grow.

RELATED ARTICLES

Recent emails from Hydrobuilder