---
product_id: 67840896
title: "Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester"
brand: "gallen"
price: "$288.87"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/67840896-professional-tester-smart-sensor-ar8100-handheld-precision-oxygen-detectors-o2
store_origin: US
region: United States of America
---

# Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester

**Brand:** gallen
**Price:** $288.87
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester by gallen
- **How much does it cost?** $288.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/67840896-professional-tester-smart-sensor-ar8100-handheld-precision-oxygen-detectors-o2)

## Best For

- gallen enthusiasts

## Why This Product

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

## Description

Model:AR8100 Gas type:Oxygen Measuring range:0~25% Resolution:0.1% Basic error:≤±1.5% F.S Response time:≤15 second Recovery time:≤15 second Sensor principle:electrochemical principles Display:LCD display Alarm:sound,light double alarm Working temperature:-10~50℃ Working humidity:0-95%RH Battery:3.7V Li-ion battery(Not included) Package Including 1 x Oxygen Detector

## Features

- Hand-held,more convenient.
- Large LCD screen with bright backlight, convenient to use. oxygen meter for educational, aquaculture, water analysis, and environmental analy
- ℃ and ℉ conversion function.
- Suitable for home,agriculture,chemical industry,mountaineering,laboratory and so on.
- Sound and light double alarm.

## Images

![Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester - Image 1](https://images-na.ssl-images-amazon.com/images/I/4124gLllu0L.jpg)
![Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester - Image 2](https://images-na.ssl-images-amazon.com/images/I/41rpBYRTvlL.jpg)
![Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester - Image 3](https://images-na.ssl-images-amazon.com/images/I/31yklueE5lL.jpg)
![Professional Tester Smart Sensor AR8100 Handheld Precision Oxygen Detectors O2 Digital Tester - Image 4](https://images-na.ssl-images-amazon.com/images/I/51eO2ovzkeL.jpg)

---

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-21*