Hydroponic Meter Pro Kit by AC Infinity — All-in-One pH, EC, TDS & Temp Meter
ACALL-in-one
- Low stock - 1 item left
Pairs well with
The AC Infinity Hydroponic Meter Pro Kit is an all-in-one water quality testing kit that measures pH, EC, TDS, temperature, and salinity from a single device with a replaceable probe. Rather than buying and calibrating multiple separate pens, this kit consolidates everything into one unit with an interchangeable probe system — letting you swap probe heads for different measurement types without replacing the meter body. Built for growers who want accurate, comprehensive water data without the clutter of five different devices on the bench.
Specifications
- Calibrate the pH probe every 7–14 days during active grows — a drifting pH probe gives you confident but inaccurate readings, which is worse than knowing the reading might be off.
- Rinse the probe with clean water between calibration solutions and between the calibration solution and your nutrient solution to avoid carryover contamination.
- Store the probe tip in KCl storage solution between uses — a dry probe degrades fast and loses accuracy before most growers notice. Never store dry.
How to Use
Pairs Well With
Calibration buffer solutions, pH Up, and pH Down — everything needed to use and maintain the meter properly.
NutrientsThis meter is designed to be used alongside a nutrient programme — accurate pH and EC measurement makes every feed more effective.
All AC Infinity ProductsGrow tools, fans, controllers, and accessories from AC Infinity for serious indoor growers.
Frequently Asked Questions
Is this better than buying separate pH and EC pens?
Yes, for most growers. A single calibrated device with an interchangeable probe reduces bench clutter, simplifies maintenance, and eliminates the need to manage multiple calibration schedules. Dedicated single-function pens from specialist brands like Bluelab may offer higher precision at the top end — but for the majority of growers, the Pro Kit covers every measurement they need reliably in one unit.
Can I replace just the probe when it wears out?
Yes. The interchangeable probe system means you replace the probe head only — not the meter body. This significantly reduces the cost of long-term ownership compared to replacing a full single-function pen when the probe wears out.
Does it measure TDS in ppm?
Yes. The meter displays TDS in ppm alongside EC in mS/cm. It supports both 500 and 700 conversion scales, making it compatible with most feeding charts regardless of which ppm scale they reference.
How often should I calibrate the pH probe?
Every 7–14 days during active grows, or before any use if the meter has been sitting unused for more than a week. More frequent calibration is better than less — a drifting pH probe gives confident but incorrect readings, which is the worst kind of inaccuracy in a grow room.
Is the kit suitable for hydroponic and soil growing?
Yes. The meter works for testing nutrient solutions in hydroponic systems, reservoir water, runoff from soil and coco grows, tap and RO water quality, and any liquid solution where pH, EC, TDS, or temperature is relevant. The salinity measurement is particularly useful for monitoring certain recirculating systems.
Five Measurements. One Kit. One Probe.
AC Infinity Hydroponic Meter Pro Kit — pH, EC, TDS, temperature, and salinity in one all-in-one unit with a replaceable probe. Everything you need to know about your water, in one device.