---
product_id: 13710562
title: "HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle"
brand: "hanna instruments"
price: "₱4653"
currency: PHP
in_stock: true
category: "Hanna Instruments"
url: https://www.desertcart.ph/products/13710562-hi7004l-4-01-ph-calibration-buffer-solution-500ml-bottle
store_origin: PH
region: Philippines
---

# Long shelf life, stable formula 500mL lab-grade buffer solution Precise 4.01 pH calibration HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle

**Brand:** hanna instruments
**Price:** ₱4653
**Availability:** ✅ In Stock

## Summary

> 🧪 Calibrate like a pro — never second-guess your pH readings again!

## Quick Answers

- **What is this?** HI7004L 4.01 pH Calibration Buffer Solution, 500mL Bottle by hanna instruments
- **How much does it cost?** ₱4653 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/13710562-hi7004l-4-01-ph-calibration-buffer-solution-500ml-bottle)

## Best For

- hanna instruments enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Stability:** Formulated for long-lasting shelf life, ensuring consistent performance every time.
- • **Lab-Grade Precision:** Calibrate your pH meter with industry-trusted 4.01 buffer for flawless accuracy.
- • **Generous 500mL Volume:** Ample solution to keep your equipment perfectly tuned over multiple uses.
- • **Effortless Calibration:** Simplify your workflow with a ready-to-use solution that guarantees quick, accurate results.
- • **Trusted by Professionals:** Hanna Instruments’ legacy means dependable quality you can count on.

## Overview

The Hanna Instruments HI7004L is a 500mL 4.01 pH calibration buffer solution designed for precise and reliable calibration of pH meters. Trusted by professionals, it offers a stable formula with a long shelf life, ensuring consistent accuracy and ease of use in laboratory and industrial settings.

## Description

Hanna Instruments

## Features

- Calibration Buffer Solution

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00RYPG6XE |
| Best Sellers Rank | #73,053 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #35 in Chemical Buffers |
| Date First Available | January 8, 2015 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.3 pounds |
| Item model number | HI7004/1L |
| Manufacturer | Hanna Instruments |
| Package Dimensions | 7.8 x 2.83 x 2.8 inches |

## Images

![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

## Frequently Bought Together

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

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

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-05-13*