AquaMaster Combo P110 Pro – pH, EC and Temperature Meter with Replaceable Electrode

The AquaMaster Combo P110 Pro is the command center your nutrient tank has been waiting for, combining three essential measuring tools into one robust, high-precision device. This digital meter allows you to instantly know the acidity (pH), nutrient concentration (EC), and temperature of your water, ensuring your plants absorb every milligram of food you give them.

Why you need more than just a basic check

The Problem: Many growers limit themselves to checking pH with drops or using cheap, uncalibrated meters, completely ignoring EC or temperature. They treat their water blindly, hoping the manufacturer's dosage chart is perfect for their specific setup (spoiler: it rarely is).

The Agitation: This lack of data is the fast track to nutrient lockout, burnt tips, and stunted growth. If the water is too cold, the roots shock; if the EC is too high, you burn them; if the pH is off, they starve even if you pour liters of cannabis fertilizers. The cost of not knowing is a mediocre harvest.

The Solution: The AquaMaster Combo P110 Pro eliminates the guesswork. By giving you all three parameters in real-time on a single screen, it turns chemistry into a simple checklist. You mix, you measure, you adjust, and you know for a fact your plants are in the sweet spot.

Use case 1: The Hydroponic & DWC Master

If you are running hydroponic and aeroponic systems, you know that water stability is everything. In these scenarios, things happen fast. A pH drift overnight can ruin a crop. The P110 Pro is designed for this battlefield. Its quick response time means you can dip it in your reservoir and get a stable reading in seconds.

The automatic temperature compensation (ATC) is a lifesaver here. Since hydro reservoirs fluctuate in temperature, this meter automatically adjusts the pH and EC readings to account for the heat or cold, ensuring you aren't correcting a problem that doesn't exist. It’s perfect for daily checks in Deep Water Culture (DWC) buckets or recirculating systems.

Use case 2: The Precision Soil Grower

You might think, "I grow in soil, do I need this?" Absolutely. The P110 Pro isn't just for hydro. When mixing your nutrient batch for soil or coco coir, getting the EC right is the difference between a monster yield and a nutrient-burned mess. It allows you to follow a feeding chart with professional accuracy.

Furthermore, it's the ultimate tool for measuring runoff. By collecting the water that drains from your pots and testing it with the P110 Pro, you can see exactly what is happening inside the root zone. Is salt building up? Is the pH crashing? This meter tells you when to flush before the plants even show symptoms.

How to choose the best use for you

Not sure if this 3-in-1 is better than buying separate pens? Here is how to decide:

• If you value speed: The Combo P110 Pro is for you. You get three data points in one dip, saving you time every single day.
• If you want long-term savings: This model features a replaceable electrode. If the sensor wears out (which happens to all meters eventually), you don't buy a new device; you just buy the tip.
• If you have limited space: Carrying one robust tool is way better than juggling three fragile pens and their cases.

Advantages and benefits that show up in every case

• Replaceable Electrode: The smartest feature. It extends the lifespan of the device significantly, saving you money over several grows.
• Water Resistant (IP67): Dropped it in the bucket? No panic. Its robust housing is designed to survive the wet environment of a grow room.
• Pre-Calibrated: It comes ready to use out of the box, but calibration is a breeze with a single button push when needed.
• Clear Digital Display: No squinting at color charts. The large LCD screen shows values clearly, even under intense grow lights.
• Auto Shut-Off: Saves your batteries (included) if you forget to turn it off after a session.

Frequently Asked Questions

How often should I calibrate the P110 Pro?

For optimal precision, we recommend calibrating it at least once a month or if you haven't used it for a long time. It is a digital device, and regular calibration ensures you aren't drifting off target.

How do I store the meter when not in use?

Never let the electrode dry out completely. Put a few drops of KCL storage solution (or pH 4.0 buffer if you don't have KCL) in the protective cap. This keeps the sensor responsive and extends its life.

Is it fully waterproof?

The housing is IP67 rated, meaning it is water-resistant and can withstand accidental splashes or brief submersions, but don't leave it floating in your tank permanently.

Can I measure soil directly with this?

No, this is a liquid meter. To measure soil, you should perform a runoff test (measure the water that drains out) or do a slurry test (mix soil with distilled water and measure the liquid).

Personal Experience of Pevgrow’s CEO (Alan)

"I've used dozens of meters over the years, from the cheap yellow ones to expensive lab equipment. The AquaMaster P110 Pro hits the sweet spot. My favorite feature is honestly the replaceable electrode. It used to drive me crazy when a sensor dried out or broke, and I had to trash the whole unit. With this, I just swap the tip and keep rolling. I use it for everything, but it really shines when I'm mixing a complex nutrient tank and need to nail the EC and pH simultaneously without juggling different pens."