---
product_id: 159119711
title: "AI3109 LabSen 831 Professional Combination pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid, BNC Connector, Lead-Free Glass"
brand: "apera instruments"
price: "₩455080"
currency: KRW
in_stock: true
url: https://www.desertcart.kr/products/159119711-ai3109-labsen-831-professional-combination-ph-electrode-for-strong-acid
store_origin: KR
region: South Korea
---

# Fast response rate Reliable BNC connector Corrosion-resistant HF glass AI3109 LabSen 831 Professional Combination pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid, BNC Connector, Lead-Free Glass

**Brand:** apera instruments
**Price:** ₩455080
**Availability:** ✅ In Stock

## Summary

> 🧪 Master the acid test with precision and speed!

## Quick Answers

- **What is this?** AI3109 LabSen 831 Professional Combination pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid, BNC Connector, Lead-Free Glass by apera instruments
- **How much does it cost?** ₩455080 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/159119711-ai3109-labsen-831-professional-combination-ph-electrode-for-strong-acid)

## 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

- • **Silver Ion Trap tech:** Advanced reference system prevents junction blockage, maintaining consistent performance.
- • **Plug & play reliability:** Standard BNC connector and lead-free glass make integration seamless and eco-conscious.
- • **Built to resist corrosion:** Specialized glass membrane resists hydrofluoric acid corrosion for long-lasting durability.
- • **Rapid response, zero wait:** Unique LabSen HF glass membrane delivers faster, repeatable readings for strong acid samples.
- • **Swiss-engineered precision:** Proprietary pH sensor tech ensures unmatched accuracy in harsh acid environments.

## Overview

The Apera Instruments AI3109 LabSen 831 is a professional-grade combination pH electrode designed specifically for strong acid and hydrofluoric acid samples. Featuring proprietary Swiss sensor technology and a unique LabSen HF glass membrane, it offers rapid response times, superior repeatability, and exceptional resistance to HF corrosion. Its advanced Silver Ion Trap reference system prevents junction blockage, ensuring reliable long-term use. Equipped with a standard BNC connector and constructed with lead-free glass, this electrode is a durable, eco-friendly choice for demanding lab environments.

## Description

AI3109 LabSen 831 Professional Combination pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid, BNC Connector, Lead-Free Glass

## Features

- Proprietary pH sensor technology and materials from Switzerland
- Unique LabSen HF glass membrane, which has a faster response rate, better repeatability in strong acid samples, and resistant to hydro fluoride corrosion.
- Silver Ion Trap Reference System – On top of the Long-Life reference system, a silver ion trap is added to prevent the junction being blocked by silver sulfide.
- Standard bnc connector
- 6-Month Warranty fulfilled by Apera Instruments

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Shanghai Sanxin Instrumentation |
| Part number | AI3109 |
| Item Weight | 250 g |
| Product Dimensions | 16 x 0.51 x 1.27 cm; 250 g |
| Item model number | AI3109 |
| Material | ABS_(Acrylonitrile_Butadiene_Styrene), PE_(Polyethylene), Glass |
| Item Package Quantity | 1 |
| Included components | 1 Combination Electrode |
| Batteries Required? | No |

## Images

![AI3109 LabSen 831 Professional Combination pH Electrode for Strong Acid Samples and HF (Hydrofluoric) Acid, BNC Connector, Lead-Free Glass - Image 1](https://m.media-amazon.com/images/I/61Z8M17HpQL.jpg)

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**Shop now:** [https://www.desertcart.kr/products/159119711-ai3109-labsen-831-professional-combination-ph-electrode-for-strong-acid](https://www.desertcart.kr/products/159119711-ai3109-labsen-831-professional-combination-ph-electrode-for-strong-acid)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-03-07*