---
product_id: 101898359
title: "Alphasense O2-A2 Oxygen Replacement Sensor"
brand: "alphasense"
price: "NT$5702"
currency: TWD
in_stock: true
reviews_count: 1
category: "Alphasense"
url: https://www.desertcart.tw/products/101898359-alphasense-o2-a2-oxygen-replacement-sensor
store_origin: TW
region: Taiwan
---

# Extended sensor lifespan ±1% O2 accuracy Plug & play compatibility Alphasense O2-A2 Oxygen Replacement Sensor

**Brand:** alphasense
**Price:** NT$5702
**Availability:** ✅ In Stock

## Summary

> 🎯 Stay ahead with pinpoint oxygen sensing — because precision is power!

## Quick Answers

- **What is this?** Alphasense O2-A2 Oxygen Replacement Sensor by alphasense
- **How much does it cost?** NT$5702 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/101898359-alphasense-o2-a2-oxygen-replacement-sensor)

## Best For

- alphasense enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Enables accurate oxygen level monitoring critical for workplace and environmental safety
- • **Built to Last:** Durable design ensures long-lasting, stable performance with minimal drift
- • **Hassle-Free Swap:** Easy installation reduces downtime and keeps your systems running smoothly
- • **Seamless Integration:** Compatible replacement for a wide range of industrial gas detectors
- • **Precision You Can Trust:** High-precision electrochemical sensing for reliable oxygen detection

## Overview

The Alphasense O2-A2 Oxygen Replacement Sensor delivers high-precision oxygen detection with ±1% accuracy, designed for seamless compatibility with various industrial gas detectors. Engineered for durability and long-term stability, it ensures reliable safety monitoring and environmental testing with minimal signal drift.

## Description

The O2-A2 Oxygen Replacement Sensor is a high-precision electrochemical sensor designed for industrial gas detection systems. Engineered for reliability and long-lasting performance, this sensor ensures accurate oxygen level measurements in various applications, including safety monitoring and environmental testing. Compatible with a wide range of gas detectors, it offers seamless replacement with stable output and minimal drift.

Review: Right sensor but clearly not new, but the company made it right! - This sensor is supposed to be an exact match. I had an O2-A2 and this one is supposedly the same sensor. Unfortunately, I didn't try it right away and it is either not actually an O2A2 or it isn't new. Regardless, the return window is closed and I am out $100. After contacting the seller they gave me a refund for the sensor. I still think they have issues with their supplier as these sensors just work if they are genuine. I will leave it to them to sort things out.

## Features

- High-Precision Oxygen Detection
- Compatible Replacement
- Durable & Long-Lasting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07G9LTTZS |
| Alarm | Audible |
| Best Sellers Rank | #289,711 in Health & Household ( See Top 100 in Health & Household ) #641 in Oxygen Accessories |
| Brand | Alphasense |
| Customer Reviews | 4.5 4.5 out of 5 stars (8) |
| Item Weight | 13.61 g |
| Manufacturer | Alphasense |
| Power Source | Corded Electric |
| Product Style | replacement sensor |
| Sensor Type | Photoelectric |
| Unit Count | 1.0 Count |

## Product Details

- **Alarm:** Audible
- **Brand:** Alphasense
- **Item Weight:** 13.61 g
- **Manufacturer:** Alphasense
- **Power Source:** Corded Electric
- **Sensor Type:** Photoelectric
- **Style:** replacement sensor

## Images

![Alphasense O2-A2 Oxygen Replacement Sensor - Image 1](https://m.media-amazon.com/images/I/412oF3hq03L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Right sensor but clearly not new, but the company made it right!
*by P***L on December 28, 2023*

This sensor is supposed to be an exact match. I had an O2-A2 and this one is supposedly the same sensor. Unfortunately, I didn't try it right away and it is either not actually an O2A2 or it isn't new. Regardless, the return window is closed and I am out $100. After contacting the seller they gave me a refund for the sensor. I still think they have issues with their supplier as these sensors just work if they are genuine. I will leave it to them to sort things out.

## Frequently Bought Together

- Alphasense O2-A2 Oxygen Replacement Sensor
- BW SR-X2V - 4OXV Oxygen (O2) Sensor
- 1PCS New CITY CiTiceL Aen Sensor 4OXV 40XV 40X-V AAY80-390 for BW GAS Detectors

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**Shop now:** [https://www.desertcart.tw/products/101898359-alphasense-o2-a2-oxygen-replacement-sensor](https://www.desertcart.tw/products/101898359-alphasense-o2-a2-oxygen-replacement-sensor)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-05-01*