---
product_id: 13710562
title: "Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle"
price: "AR$96295"
currency: ARS
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.ar/products/13710562-hanna-instruments-hi7004l-4-01-ph-calibration-buffer-solution-500ml
store_origin: AR
region: Argentina
---

# 500mL lab-grade buffer solution Stable calibration for consistent readings Precise 4.01 pH calibration Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle

**Price:** AR$96295
**Availability:** ✅ In Stock

## Summary

> ⚖️ Calibrate with confidence, measure with precision!

## Quick Answers

- **What is this?** Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle
- **How much does it cost?** AR$96295 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/13710562-hanna-instruments-hi7004l-4-01-ph-calibration-buffer-solution-500ml)

## 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

- • **Lab-Grade Precision:** Ensure your pH meter reads flawlessly every time with the exact 4.01 pH standard.
- • **Consistent Stability:** Maintains stable pH levels to guarantee accurate and repeatable calibration results.
- • **Generous 500mL Volume:** Ample solution to support multiple calibrations without frequent repurchases.
- • **Trusted Brand Reliability:** Hanna Instruments’ proven quality trusted by professionals worldwide.
- • **Cost-Effective Calibration:** Premium performance at a price that keeps your lab budget happy.

## Overview

The Hanna Instruments HI7004L is a 500mL 4.01 pH calibration buffer solution designed to deliver precise and stable calibration for pH meters, ensuring accurate measurements essential for professional and laboratory use.

## Description

Hanna Instruments

Review: Should get if you need to calibrate ph machine reader - Helps calibrate the PH level because the machine I ordered wasn’t working after using this it was good, and price worthy
Review: Great product - I have used Hanna calibration buffer solutions for years with no problems.

## Features

- Calibration Buffer Solution

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Customer Reviews | 4.5 out of 5 stars 67 Reviews |

## Images

![Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle - Image 1](https://m.media-amazon.com/images/I/81SkaEo9SpL.jpg)

## Questions & Answers

**Q: Is it normal for the ph of the buffer to change over time? My teika ph meter read 4.01 one day, 4.17 the next, and 4.27 the next.**
A: I have the same problem and have not figured it out yet, even with a new meter. Sorry I couldn't be more help

## Customer Reviews

### ⭐⭐⭐⭐⭐ Should get if you need to calibrate ph machine reader
*by S***L on June 23, 2025*

Helps calibrate the PH level because the machine I ordered wasn’t working after using this it was good, and price worthy

### ⭐⭐⭐⭐⭐ Great product
*by R***S on March 27, 2020*

I have used Hanna calibration buffer solutions for years with no problems.

### ⭐⭐⭐⭐⭐ good ole' reliable
*by J***N on December 2, 2016*

Works well it's reliable has a long shelf life. I've been using Hanna calibration solutions for years now and I have nothing but good to say and report about it

## Frequently Bought Together

- Hanna Instruments HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle
- WLR Industries Hanna HI7007L pH 7 Buffer Solution - pH 7.01
- Hanna Instruments HI70300L pH/ORP Electrode Storage Solution, 500mL (16.9oz) Bottle

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**Shop now:** [https://www.desertcart.com.ar/products/13710562-hanna-instruments-hi7004l-4-01-ph-calibration-buffer-solution-500ml](https://www.desertcart.com.ar/products/13710562-hanna-instruments-hi7004l-4-01-ph-calibration-buffer-solution-500ml)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-01-31*