---
product_id: 56650618
title: "APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration"
brand: "apera instruments"
price: "$U9306"
currency: UYU
in_stock: null
reviews_count: 11
category: "Apera Instruments"
url: https://www.desertcart.uy/products/56650618-apera-instruments-ai209-t-value-series-ph20-ph-tester-combo
store_origin: UY
region: Uruguay
---

# Fast response with low impedance sensor IP67 waterproof & dustproof durability Save 50% on calibration buffers with CalBox APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration

**Brand:** apera instruments
**Price:** $U9306
**Availability:** ❌ Out of Stock

## Summary

> 🔬 Elevate your pH game—precision, speed, and savings in one sleek kit!

## Quick Answers

- **What is this?** APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration by apera instruments
- **How much does it cost?** $U9306 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/56650618-apera-instruments-ai209-t-value-series-ph20-ph-tester-combo)

## Best For

- apera instruments enthusiasts

## Why This Product

- Trusted apera instruments brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** IP67 waterproof and dustproof design ensures your meter thrives in any environment, from hydroponics to brewing.
- • **Calibrate Like a Pro:** Auto buffer recognition and 3-point calibration simplify your workflow and guarantee lab-grade reliability.
- • **Precision Meets Speed:** Low impedance sensor delivers rapid, accurate pH readings with ±0.1 accuracy—no more waiting around.
- • **Effortless Maintenance:** Probe cleaning brush and auto temperature compensation keep your device performing flawlessly, calibration after calibration.
- • **Organized & Cost-Savvy:** Apera’s unique CalBox cuts buffer solution waste by 50%, keeping your workspace neat and your budget happy.

## Overview

The APERA INSTRUMENTS AI209-T PH20 pH Tester Combo Kit is a top-rated, professional-grade pH meter featuring a fast low-impedance sensor, auto 3-point calibration with buffer recognition, and auto temperature compensation (32-122˚F). It includes a complete maintenance set with a probe cleaning brush and Apera’s innovative CalBox, which organizes calibration solutions and reduces buffer costs by 50%. Designed for diverse applications like hydroponics, brewing, and water treatment, it boasts IP67 waterproof/dustproof protection and up to 2000 hours of continuous operation powered by included AAA batteries.

## Description

"The top-rated pH tester on desertcart now comes with a complete calibration and probe care combo kit, including 3 bottles of 8oz pH calibration solutions (pH 7, 4 & 10), one 4oz 3M KCL storage solution, a probe cleaning brush, and Apera's unique CallBox for organizing all the solutions and efficient use of buffer solutions (help you save the cost on buffers by at least 50%). Performing pH calibration in fresh and clean calibration solutions regularly is critical to the reliable performance of pH meters. As a rule of thumb, we recommend calibrating your pH meter at least once a week. And each batch of calibration solutions should be replaced after 10-15 times of calibration. With Apera's Callbox and 8oz calibration solutions, users can perform up to 150 times of calibration. The probe cleaning brush that comes with the kit can help you easily remove contaminants on the glass bulb sensor without any damage, maximizing the life span of your pH probe.The PH20 Value pH Tester is designed for all kinds of regular water solutions pH test, including hydroponics, pools and spas, water treatment, aquariums, aquaculture, beer brewing, winemaking, cooling towers, etc. Up to 3 points of auto. calibration and 0 to 50˚C Auto temperature compensation (ATC), ±0.1 pH Accuracy with 0 to 14.0 pH measuring range; auto. recognition and auto. indication of stable readings saves you the trouble of guessing when to manually hold measurement. With a clear large screen, it supports dual display of Temp./pH value and indicators of completed calibrations (where L/M/H indicate 3 points of calibrations) and stable readings (with a smiley face). Smart self-diagnosis, warning of out-of-range measurement and incorrect calibrations. IP67 waterproof and dustproof. Up to 2000 hours' continuous operation powered by AAA batteries (with low power warning and Auto power off in 8 min if no operation). 6-Month on the the probe. "

Review: The perfect pH meter - I love this meter. It’s easy to calibrate. The readings are fast and accurate. It reaches a conclusion quickly and will hold the reading after being removed from the solution. The small refillable jars for calibration solutions make this a great little kit. Perfect for the lab or home enthusiast.
Review: Easy to use, calibrate, and clean. - I use this for mead making where pH is an important factor for recipe development at different stages of the process. It’s easy to use, easy to calibrate, easy to read, and easy to clean. Great value for what seems to be a reliable, lab quality product.

## Features

- The top-rated pH tester now comes with a complete CALIBRATION and PROBE CARE Combo Kit, ensuring reliable test performance
- Comes with a probe cleaning brush for easy removal of contaminants on probes, maximizing probe's life-span
- Comes with Apera's unique CalBox, heping you organize all the solutions and save cost on buffers by at least 50%
- Apera quality pH sensor with low impedance, greatly improving response speed and shorteninb stablizing process
- Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122˚F)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077Z6LF91 |
| Batteries | 4 AAA batteries required. (included) |
| Best Sellers Rank | #2,954 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Lab pH Meters |
| Date First Available | December 7, 2017 |
| Item Weight | 3.3 pounds |
| Item model number | AI209-T |
| Manufacturer | Apera Instruments |
| Product Dimensions | 7 x 1.6 x 1.2 inches |

## Images

![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 1](https://m.media-amazon.com/images/I/612b36RUNML.jpg)
![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 2](https://m.media-amazon.com/images/I/61zM0X7STOL.jpg)
![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 3](https://m.media-amazon.com/images/I/51giCOPy+PS.jpg)
![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 4](https://m.media-amazon.com/images/I/61HfZO6a5kL.jpg)
![APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration - Image 5](https://m.media-amazon.com/images/I/A1grEk4yLGL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: When calibrating, should i wait until the pen reaches the ph the solution should be before i go to the next step. or when the smiley face pops up?**
A: Smiley face. That said, when taking readings, even in the calibration solution, remember to swirl the meter in the solution with some briskness. I found that my pH pen continues to walk down or walk up almost a half a PH point just from swirling it in the solution.

**Q: So does this ph tester come pre calibrated? Thats what the user manual makes it sound like. I already have the 7 & 9 range just not 10.**
A: The base pen comes with enough solution to last at least a year of biweekly checking/  calibrating. The full kit comes with big bottles of all 3 ph ranges and a storage solution. I havnt even had to open my large bottles.  But I plan to next month just to exchange my small bottles (I've used for almost a year now) 
I have maybe had to calibrate 2 times and that was just to be safe. My water stays the same so I know what it is before and after my nutrient feeds so if it ever reads off, I just check it on a solution for the proper readout.

**Q: Anybody had success using this for fermentation? I'm hoping to find one that's easy to use/store that I can use for fermenting hot sauces, etc.**
A: I use mine specifically for Horticulture and I have zero experience in fermentation; that said, I believe this will still be a great tool for your purposes.

**Q: Can this tester be used to test ph for medical / intravenous solutions? i am looking for something that is accurate to ~0.1ph. any experience?**
A: It does measure to the tenth (0.0).  The other Apera model PC60, measures to the hundredth (0.00).

I use the PH20 and noticed when making changes to your solution, change down reads fairly quickly. Changes to raise PH reads more slowly, so give it a few minutes to stabilize the reading.

Also I use the 7.0 calibration fluid in the cap when storing between uses.  Helps notice if recalibration is needed.
Always rinse and dry probe before storing or testing.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The perfect pH meter
*by M***R on January 3, 2026*

I love this meter. It’s easy to calibrate. The readings are fast and accurate. It reaches a conclusion quickly and will hold the reading after being removed from the solution. The small refillable jars for calibration solutions make this a great little kit. Perfect for the lab or home enthusiast.

### ⭐⭐⭐⭐⭐ Easy to use, calibrate, and clean.
*by N***N on December 8, 2025*

I use this for mead making where pH is an important factor for recipe development at different stages of the process. It’s easy to use, easy to calibrate, easy to read, and easy to clean. Great value for what seems to be a reliable, lab quality product.

### ⭐⭐⭐⭐⭐ Accurate, reliable, and perfect for professional kitchen use.
*by T***C on October 25, 2025*

I bought the Apera AI209 Value Series pH Tester for use in our professional kitchen, mainly to test the pH levels of barbecue sauces and hot sauces to ensure they stay below the required threshold for shelf stability. It’s been a fantastic upgrade from our old Dr. Meter testers, which were cheaper upfront but rarely lasted more than three months and were frustrating to keep properly calibrated. The calibration process with the Apera is a breeze. Unlike other brands that give you powder packets you have to mix with “clean” water (and good luck deciding what counts as clean), this kit comes with bottles of perfectly balanced calibration solutions; no guessing, no inconsistencies, and no cursing over cloudy mixes. You start with a solid, reliable baseline right out of the box. Readings are quick (usually within 5 to 10 seconds), and the included carrying case is surprisingly sturdy and well-organized. It's been dropped a few times already. I know this pH tester is marketed toward a wide range of uses, but for food safety applications in a commercial kitchen, it’s been excellent. It gives us accurate, repeatable results, and peace of mind knowing our sauces are safe and shelf-stable.

## Frequently Bought Together

- APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration
- General Hydroponics pH Control Kit For A Balanced Nutrient Solution
- Apera Instruments AI213 Value Series TDS20 Waterproof TDS Pocket Tester kit, Accuracy: ±1% F.S, 2-Point Auto. Calibration

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-20*