---
product_id: 223859198
title: "Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox"
brand: "apera instruments"
price: "B/.86"
currency: PAB
in_stock: true
url: https://www.desertcart.com.pa/products/223859198-apera-ai209-t-ph20-value-ph-tester-combo-kit-8oz
store_origin: PA
region: Panama
---

# 4 AAA batteries Calibration buffers pH accuracy Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox

**Brand:** apera instruments
**Price:** B/.86
**Availability:** ✅ In Stock

## Summary

> 🔬 Elevate Your Testing Game with Apera!

## Quick Answers

- **What is this?** Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox by apera instruments
- **How much does it cost?** B/.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/223859198-apera-ai209-t-ph20-value-ph-tester-combo-kit-8oz)

## 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

- • **Longer Probe Life:** Included cleaning brush ensures your pH probe stays contaminant-free for extended use.
- • **Rapid Response Time:** Low impedance sensor enhances response speed, minimizing stabilization time.
- • **Temperature Resilience:** Automatic temperature compensation guarantees reliable readings from 32 to 122˚F.
- • **Stay Organized, Save Money:** Apera's unique CalBox keeps your solutions tidy while slashing buffer costs by 50%.
- • **Precision Meets Convenience:** Experience effortless auto-calibration with buffer recognition for pinpoint accuracy.

## Overview

The Apera AI209-T PH20 Value pH Tester Combo Kit is a comprehensive solution for accurate pH testing, featuring a high-quality pH sensor, calibration buffers, a cleaning brush, and a unique CalBox for organization and cost savings.

## Description

The PH20 Value pH Tester is designed for all kinds of regular pH test applications, 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.The PH20 meter comes in a rugged case with pre-mixed 1oz bottles of pH 4 and pH 7 calibration solutions (good for 10-15 times of calibration).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).The meter is CE certified and comes with a 2-YEAR Warranty (6 months for the probe).The company develops scientific analytical instruments like meters and sensors for pH, conductivity, turbidity, and dissolved oxygen since 1991.NOTES: This instrument will NOT give accurate or stable readings for distilled or deionized water's pH testing. To measure distilled or deionized water’s pH, users need to use a specialized pH meter such as SX811-PW. Do NOT store the probe in distilled water or deionized water because they will cause damage to the glass membrane of the pH probe. Only use distilled or deionized water for rinsing pH probes.

## 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 |
|---------------|-------|
| Brand | Apera Instruments |
| Manufacturer | Shanghai Sanxin Instrumentation |
| Model number | AI209-T |
| Number of Memory Sticks | 1 |
| Item Weight | 1 kg 500 g |
| Product Dimensions | 17.78 x 4.06 x 3.04 cm; 1.5 kg |
| Batteries | 4 AAA batteries required. (included) |
| Item model number | AI209-T |
| Item Height | 3.04 Centimeters |
| Item Width | 4.06 Centimeters |
| Are batteries included? | Yes |

## Images

![Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox - Image 1](https://m.media-amazon.com/images/I/612b36RUNML.jpg)
![Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox - Image 2](https://m.media-amazon.com/images/I/61zM0X7STOL.jpg)
![Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox - Image 3](https://m.media-amazon.com/images/I/51giCOPy+PS.jpg)
![Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox - Image 4](https://m.media-amazon.com/images/I/61HfZO6a5kL.jpg)
![Apera AI209-T PH20 Value pH Tester Combo Kit with 8oz calibration buffers (4,7,10), 4oz 3M KCL Storage Solution, Probe Cleaning Brush & CalBox - Image 5](https://m.media-amazon.com/images/I/A1grEk4yLGL.jpg)

## 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.

## 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 Panama*
*Store origin: PA*
*Last updated: 2026-01-22*