pH Testers, Meters

Digital pH Meters, Simple Handheld Testers, and Beyond

We carry reliable options for every grower, from simple handheld testers and test strips to advanced digital monitoring systems with Wi-Fi connectivity and automated dosing. GrowersHouse makes it easy to choose the right tool for water and substrate analysis, no matter the scale of your operation.

We understand the importance of accurate pH measurements and reliable calibration solutions. That’s why we stock advanced testers and combo meters from the most trusted brands like Bluelab and HM Digital. Find complete systems for conductivity, pH, and temperature measurements. Get compact, pocket-friendly units with simple operations and instruction manuals.

With our wide range of products, you will find the right measurement systems to suit your hobby or professional setup.

More Than Just Measuring pH

At GrowersHouse, we know that measuring pH with advanced features is not the entire equation. Equipment maintenance is just as important as accuracy. This is why we also carry a full lineup of calibration liquids, pH buffers, storage solutions, and replacement electrodes to keep your equipment accurate and long-lasting.

For busy growers, we also offer complete starter kits that include meters, calibration process solutions, and carrying cases—everything you need for accurate, portable pH and EC monitoring in one place.

Hassle-Free Product Fulfillment

Whether you’re replacing a worn pH pen or scaling up to full facility automation, GrowersHouse makes fulfillment easy. We provide free product shipping across the continental U.S., so you can get the testing and dosing tools you need without the extra cost.

Our Will Call pickup service in Tucson and Phoenix lets you grab in-stock meters and calibration gear on the same day, usually within an hour of ordering.

Test Smarter and Grow Stronger

Take control of your grow environment with accurate, dependable pH and EC monitoring tools. Whether you’re targeting ideal pH levels for nutrient uptake or building out a complete water testing and automation system, we carry the meters, sensors, pH electrodes, and calibration solutions professionals rely on.

Browse our complete selection today and build a water-testing setup that grows with you. Measure confidently, adjust precisely, and grow better with GrowersHouse.

Frequently Asked Questions

What is a pH meter used for?

A pH meter measures the acidity or alkalinity of a solution, helping monitor nutrient levels in soil or water for healthier plant growth.

How do I calibrate a pH meter?

Start by rinsing the pH probe in deionized water and letting it air dry. Dip it into a pH 7.0 buffer solution and stir gently until the reading stabilizes. Record the value and the buffer used. Rinse the probe again, then repeat the process with at least one more buffer solution to ensure accurate calibration. Always rinse between buffer solutions to avoid contamination.

How often should I calibrate my pH meter?

Calibration frequency depends on the sample type, electrode condition, usage, and accuracy needs. For general applications like hydroponics or aquariums, calibrate once a year during the first two years, then every six months. In high-accuracy environments with strong acids or bases—like pharmaceuticals or industrial processes—calibrate monthly or after each use.