Stop guessing and start growing with precision. The AC Infinity pH Meter PRO Kit delivers ±0.01 accuracy pH and temperature readings in a rugged, IP67-rated body — with an interchangeable lithium glass membrane probe that extends the life of your meter indefinitely. Whether you're dialing in your hydroponic reservoir, monitoring a greenhouse irrigation system, or testing your brewing water, this lab-grade kit gives you the confidence that your readings are right every time.
Why the AC Infinity pH Meter PRO Kit
Most pH meters force you to replace the entire unit when the probe degrades — an expensive and wasteful cycle that serious growers shouldn't have to deal with. The AC Infinity pH Meter PRO Kit solves this with a fully interchangeable lithium glass membrane probe: when accuracy drifts, swap the probe and you're back to lab-grade precision without buying a new meter. This design makes the PRO Kit a long-term investment rather than a consumable.
The included calibration kit — with 4.00, 7.00, and 10.01 pH buffer solutions plus KCL storage solution — ensures your meter stays accurate across its full measurement range. The IP67 waterproof rating means it handles the wet, humid conditions of a grow room or greenhouse without hesitation. From cannabis cultivation to aquaculture to homebrewing, the PRO Kit is built for growers and professionals who need reliable data, not approximations.
Key Benefits
- ±0.01 pH Accuracy – Lab-grade precision ensures your nutrient solution, irrigation water, or reservoir pH is measured correctly every time.
- Interchangeable Lithium Glass Membrane Probe – Replace only the probe when it wears out, extending the meter's lifespan and eliminating the need to buy a new unit.
- Dual pH & Temperature Sensing – Measures both pH and water temperature simultaneously for a complete picture of your water quality.
- IP67 Waterproof Rating – Fully protected against dust and submersion, making it reliable in wet grow environments, outdoor gardens, and poolside use.
- Complete Lab-Grade Calibration Kit – Includes 4.00, 7.00, and 10.01 pH buffer solutions plus KCL storage solution for accurate, long-lasting calibration.
- Wide Application Range – Suitable for hydroponics, soil grows, greenhouses, aquariums, pools, spas, and homebrewing applications.
- Compact & Ergonomic Design – At 1.65 x 1.30 x 7.01 inches, the meter is easy to handle and store without taking up bench space.
Use Cases
- Hydroponic Reservoir Management – Test and adjust nutrient solution pH daily to maintain the optimal range (typically 5.5–6.5) for maximum nutrient availability and plant uptake.
- Soil & Coco Grow Monitoring – Measure runoff or soil slurry pH to identify lockout conditions and correct imbalances before they affect plant health.
- Greenhouse Irrigation Systems – Monitor irrigation water pH at the source and at the dripper to ensure consistent delivery across large-scale greenhouse operations.
- Aquarium & Aquaculture – Maintain stable pH levels in fish tanks, aquaponic systems, and aquaculture facilities where water chemistry directly impacts livestock health.
- Pool & Spa Water Testing – Quickly verify pool and spa pH to ensure safe, comfortable water and effective sanitizer performance.
- Homebrewing & Beverage Production – Monitor mash, wort, or fermentation pH to hit target ranges that affect flavor, clarity, and yeast performance in beer, wine, and kombucha production.
Directions for Use
- Before first use, calibrate the meter using the included 4.00, 7.00, and 10.01 pH buffer solutions following the calibration procedure in the product manual.
- Remove the probe cap and rinse the probe tip with clean distilled or deionized water before each measurement.
- Submerge the probe tip in the sample solution and wait for the reading to stabilize on the display.
- Record the pH and temperature readings, then rinse the probe again with clean water after use.
- Store the probe in KCL storage solution (included) between uses to maintain the glass membrane's sensitivity and extend probe life.
- Recalibrate regularly — at minimum before each grow cycle or whenever readings seem inconsistent.
- When probe accuracy degrades beyond calibration correction, replace the interchangeable probe rather than the entire meter.
What Growers Are Saying
"The interchangeable probe is the feature that sold me. I've had this meter for two grow cycles and just swapped the probe — reads like new. Best pH meter I've owned."
— Marcus T., Commercial Grower
"Accuracy is spot on and the IP67 rating means I don't have to baby it in the greenhouse. The calibration kit included is a nice touch — everything you need right out of the box."
— Sarah P., Greenhouse Grower
"I use this for both my hydro setup and my homebrew. The dual pH and temp reading is super convenient and the ±0.01 accuracy gives me confidence in my numbers."
— Daniel R., Home Grower
Frequently Asked Questions
What makes this pH meter different from standard pH pens?
The key differentiator is the interchangeable lithium glass membrane probe. Standard pH pens require you to replace the entire unit when the probe degrades. With the PRO Kit, you simply swap the probe and continue using the same meter — saving money and reducing waste over time. The included full calibration kit and IP67 rating further set it apart from entry-level options.
How often should I calibrate the pH meter?
For best accuracy, calibrate before each grow cycle or whenever readings seem off. At minimum, perform a two-point calibration (4.00 and 7.00 pH) regularly. The included buffer solutions make this quick and straightforward.
How do I store the probe between uses?
Store the probe submerged in the included KCL storage solution between uses. This keeps the glass membrane hydrated and maintains its sensitivity. Never store the probe dry, as this can permanently damage the membrane.
When should I replace the probe?
Replace the probe when readings become slow to stabilize, drift significantly, or can no longer be corrected through calibration. Probe lifespan varies based on usage frequency and the solutions being tested, but regular KCL storage significantly extends probe life.
Is this meter suitable for testing nutrient solutions with high EC?
Yes — the AC Infinity pH Meter PRO Kit is designed for horticultural use including nutrient-rich hydroponic solutions. Rinse the probe thoroughly with clean water after testing high-EC solutions to prevent residue buildup on the membrane.
What is the waterproof rating and what does it mean?
The meter is rated IP67, meaning it is fully protected against dust ingress and can withstand submersion in water up to 1 meter deep for up to 30 minutes. This makes it safe to use in wet grow environments, outdoor gardens, and poolside without risk of damage from splashing or brief submersion.
Description
Specifications
You may also like
- Regular price
- $172.99
- Sale price
- $172.99
