---
product_id: 712551634
title: "Apera Instruments, LLC-AI1109 8oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 4oz 3M KCL Storage Solution for pH/ORP Electrodes"
brand: "apera instruments"
price: "AR$207558"
currency: ARS
in_stock: true
reviews_count: 5
category: "Apera Instruments"
url: https://www.desertcart.com.ar/products/712551634-apera-instruments-llc-ai1109-8oz-ph-calibration-buffer-solution-kit
store_origin: AR
region: Argentina
---

# ISO 9001:2015 certified production 3 pH buffers + 3M KCL storage ±0.01 pH accuracy Apera Instruments, LLC-AI1109 8oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 4oz 3M KCL Storage Solution for pH/ORP Electrodes

**Brand:** apera instruments
**Price:** AR$207558
**Availability:** ✅ In Stock

## Summary

> 🧪 Calibrate like a pro — precision and purity in every drop!

## Quick Answers

- **What is this?** Apera Instruments, LLC-AI1109 8oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 4oz 3M KCL Storage Solution for pH/ORP Electrodes by apera instruments
- **How much does it cost?** AR$207558 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/712551634-apera-instruments-llc-ai1109-8oz-ph-calibration-buffer-solution-kit)

## 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

- • **Color-Coded Efficiency:** Quickly identify pH 4.00, 7.00, and 10.01 buffers with intuitive color coding—no guesswork, just precision.
- • **Long-Lasting Freshness:** Double-sealed bottles with a 2-year unopened shelf life keep your calibration solutions pristine and ready.
- • **Complete Calibration Kit:** Includes 8oz buffers for all key pH points plus 4oz 3M KCL storage solution to extend electrode life and accuracy.
- • **Certified Quality Assurance:** Manufactured in an ISO 9001:2015 & ISO 17025:2017 accredited facility ensuring unmatched purity and reliability.
- • **Precision-Calibrated Confidence:** Achieve lab-grade ±0.01 pH accuracy traceable to NIST standards for flawless measurements every time.

## Overview

The Apera Instruments AI1109 Calibration Kit delivers ultra-precise pH buffer solutions (4.00, 7.00, 10.01) with ±0.01 accuracy, produced under strict ISO certifications using high-purity reagents. Color-coded and double-sealed for ease and longevity, it includes a 4oz 3M KCL storage solution to maintain electrode performance, making it the go-to choice for professionals demanding reliable, lab-grade calibration.

## Description

Apera Instruments pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01, 8 oz. each), plus 4 oz. 3M KCL Soaking Storage Solution. Apera pH calibration buffers are produced in an ISO 9001:2015 facility with ISO 17025:2017 accreditation using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment. Reported values are accurate to +/- 0.01 pH at 25°C and are traceable to NIST Standard Reference Materials (SRMs). MSDS documents are downloadable. Certificate of analysis can be achieved by request. All pH buffers have a 2-year expiration from manufacture for an unopened bottle.

Review: Must have these if you own a pH pen
Review: GOOD

## Features

- Reported values are accurate to +/- 0.01 pH at 25 °C and are traceable to NIST Standard Reference Materials (SRMs).
- Produced in an ISO 9001:2015 certified facility using high-purity reagents, deionized water and certified analytical balances in a temperature controlled environment.
- color-coded for quick identification.
- Double-sealed. 2-year expiration from manufacture for an unopened bottle.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N0QVLLD |
| ASIN  | B01N0QVLLD |
| Batteries Required? | No |
| Customer Reviews | 4.7 4.7 out of 5 stars (170) |
| Customer reviews | 4.7 4.7 out of 5 stars (170) |
| Date First Available | 23 August 2019 |
| Date First Available  | 23 August 2019 |
| Included components | 8oz. pH Calibration Buffer Solution Kit |
| Item Package Quantity | 1 |
| Item Weight | 255 g |
| Item model number | AI1109 |
| Item model number  | AI1109 |
| Item thickness | 1 Inches |
| Manufacturer | Apera Instruments |
| Manufacturer  | Apera Instruments |
| Material | HDPE |
| Measurement System | US |
| Part number | AI1109 |
| Product Dimensions | 5.08 x 5.08 x 20.32 cm; 255.15 g |
| Product Dimensions  | 5.08 x 5.08 x 20.32 cm; 255.15 g |
| Style | pH 7/4/10 (8 oz) + KCL |

## Images

![Apera Instruments, LLC-AI1109 8oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 4oz 3M KCL Storage Solution for pH/ORP Electrodes - Image 1](https://m.media-amazon.com/images/I/71UfGu7E6YL.jpg)

## Questions & Answers

**Q: Most of these kits are currently out of stock.  is there an eta or more stock, please?  thanks.**
A: I don’t have any information you can call apera instruments they should be able to help you with your inquiry.

**Q: Why can't i bay this calibration kit and get it delivered to silkeborg denmark, when i can bay the apera pc60 and get it delivered. it doesn't make se**
A: Perhaps this company doesn't have an export license?

**Q: Does refrigeration after opening extend life of solutions?**
A: I never had and it's been fine.

**Q: Would the buffer solutions and storage solution work with the Extech pH meter?**
A: I would think it would work with your meter providing what you are trying to buffer falls within that range. The storage solution should work with all meters. 
  I would contact Extech and confirm with them to be 100% certain.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Must have these if you own a pH pen
*by A***E on 10 September 2025*



### ⭐⭐⭐⭐⭐ GOOD
*by T***. on 10 February 2025*



### ⭐⭐⭐⭐⭐ I trust this company.
*by D***. on 16 April 2025*



## Frequently Bought Together

- Apera Instruments, LLC-AI1109 8oz. pH Calibration Buffer Solution Kit (pH 4.00, 7.00 & 10.01), plus 4oz 3M KCL Storage Solution for pH/ORP Electrodes
- Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display
- Apera Instruments 3M KCL Storage Soaking Solution (8 oz.) for pH and ORP Electrodes

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-03*