---
product_id: 42507058
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"
price: "฿3750"
currency: THB
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.th/products/42507058-apera-instruments-llc-ai1109-8oz-ph-calibration-buffer-solution-kit
store_origin: TH
region: Thailand
---

# Color-coded for quick ID ISO 9001:2015 certified production ±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

**Price:** ฿3750
**Availability:** ✅ In Stock

## Summary

> 🔬 Calibrate like a pro — precision that keeps you ahead of the curve!

## 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
- **How much does it cost?** ฿3750 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/42507058-apera-instruments-llc-ai1109-8oz-ph-calibration-buffer-solution-kit)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Long-Lasting Freshness:** Double-sealed bottles with a 2-year unopened shelf life to keep your calibration reliable.
- • **Precision You Can Trust:** Accurate to ±0.01 pH at 25°C, ensuring lab-grade calibration every time.
- • **Complete Calibration Kit:** Includes pH 4.00, 7.00, 10.01 buffers plus 4oz 3M KCL storage solution for electrode longevity.
- • **Effortless Identification:** Color-coded buffer solutions for instant recognition and streamlined workflow.
- • **Certified Quality Assurance:** Manufactured in an ISO 9001:2015 & ISO 17025:2017 accredited facility with NIST-traceable standards.

## Overview

The Apera Instruments AI1109 pH Calibration Buffer Solution Kit offers ultra-precise pH calibration with ±0.01 accuracy at 25°C, produced under strict ISO 9001:2015 and ISO 17025:2017 standards. Featuring color-coded, double-sealed bottles with a 2-year shelf life, this kit includes three 8oz buffer solutions (pH 4.00, 7.00, 10.01) plus a 4oz 3M KCL storage solution, ensuring reliable electrode maintenance and professional-grade performance.

## 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 - Excellent value for the money saved me from buying a brand new pH pen it calibrated my pen perfectly I'm very pleased with my purchase
Review: GOOD - No problems and performed as expected.

## 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 |
|---------------|-------|
| Customer Reviews | 4.7 out of 5 stars 233 Reviews |

## 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 September 10, 2025*

Excellent value for the money saved me from buying a brand new pH pen it calibrated my pen perfectly I'm very pleased with my purchase

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

No problems and performed as expected.

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

Bought other brand of of meter. It came with powder for calibration. Did not feel I got a stable reading, could not trust. These liquids made me more confident in accurate setting!

## 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 Thailand*
*Store origin: TH*
*Last updated: 2026-02-01*