- 1x pH Meter
- 1x pH 4.00 Calibration Buffer Solution
- 1x pH 7.00 Calibration Buffer Solution
- 1x 3M KCL Soaking Solution
- 1x pH 4.00 Calibration Vial
- 1x pH 7.00 Calibration Vial
- 1x Travel Lanyard
AC Infinity Hydroponic Meter PRO Kit
- Measures 5 critical water parameters with laboratory-grade accuracy
- IP67 waterproof housing with a fully replaceable sensor probe
- Includes calibration solutions and KCL storage for immediate use
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Who This Is For
- You are consolidating your testing tools because juggling separate pH and EC pens makes your daily checks take too long.
- You are moving to lab-grade meters because cheap digital pens drift too often and leave you second-guessing your ppm.
What We Found
- Most meters are trash once the sensor dies, but being able to swap just the probe on this unit saves a ton of money.
- You can actually dunk this whole unit into a tank without worry, which isn't true for most of the pens we see.
What Users Say
- Users who switched to this kit say they stopped losing harvest quality to the wild pH swings of budget pens.
- Growers report that having the calibration vials in the kit makes it much easier to keep their readings accurate.
AC Infinity Hydroponic Meter PRO Kit
Struggling to maintain the perfect nutrient balance for your hydroponic garden? Guesswork can lead to stressed plants and disappointing yields. The AC Infinity Hydroponic Meter PRO Kit is your all-in-one solution, designed for meticulous growers who demand precision and durability in their tools.
This professional-grade meter delivers laboratory-grade accuracy for five critical parameters: pH, EC, TDS, temperature, and salinity. By providing precise control over your water quality and nutrient uptake, it ensures your plants receive exactly what they need to thrive. Featuring a rugged, IP67 waterproof design and a replaceable sensor probe to reduce long-term costs, this kit is one of the most reliable digital meters available for growers, hobbyists, and professionals alike.
What's Included
Features



Lab-Grade Precision
Delivers highly accurate measurements for pH, EC, TDS, temperature, and salinity.
In-Depth Calibration
Includes a comprehensive set of calibration solutions to ensure consistent, reliable results.
Versatile Application
Perfect for hydroponics, aquariums, pools, and any application requiring precise water quality control.
Replaceable Probe
Easily swap out the sensor probe to extend the meter's life and maintain accuracy, reducing long-term costs.
Specifications
| Specification | Value |
|---|---|
| Dimensions | 1.65 x 1.30 x 7.01 in. (4.2 x 3.3 x 17.8 cm) |
| Sensors | pH, Temperature, EC, TDS, Salinity |
| Probe Type | Interchangeable Lithium Glass Membrane |
| pH Range | 0.00 - 14.00 pH |
| EC Range | 0.00 - 19.99 mS/cm |
| TDS Range | 0 - 9990 ppm |
| Temperature Range | 0.1 - 80.0°C (32.2 - 176°F) |
| Salinity Range | 0.00 - 14.00 ppt |
| Accuracy | ±0.01 pH |
| Waterproof Rating | IP67 |
| Included Solutions | 4.00 pH, 7.00 pH, 10.01 pH, 12.88 mS, 1413 µS, KCL |
Support & Manuals
FAQs
This all-in-one device accurately measures five key water quality parameters: pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), temperature, and salinity.
Yes, it features a high-quality, interchangeable lithium glass membrane probe. This allows you to easily replace the sensor if needed, extending the lifespan of the meter and ensuring long-term accuracy.
For the most accurate results, we recommend calibrating the meter before its first use and then periodically based on your usage. If you notice inconsistent readings or are testing different types of solutions frequently, more regular calibration is advised. The kit includes all the necessary buffer and soaking solutions to get you started.
Absolutely. While it's designed for hydroponics, its precision and versatility make it an excellent tool for managing water quality in aquariums, pools, spas, and other water systems.
The Hydroponic Meter PRO Kit has an IP67 waterproof rating, which means it is fully protected against dust and can withstand being submerged in up to 1 meter of water for 30 minutes.
Yes, this meter is a crucial tool for managing nutrient solutions used in systems like the AC Infinity Self-Watering Fabric Pot Bases or within one of their complete grow tent kits.
For a comprehensive overview of setting up a controlled environment, check out our in-depth guide on AC Infinity grow tents and air filter kits.
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.