---
product_id: 277321068
title: "Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L"
brand: "airthings"
price: "¥64058"
currency: JPY
in_stock: true
reviews_count: 5
category: "Airthings"
url: https://www.desertcart.jp/products/277321068-airthings-corentium-home-radon-detector-223-portable-lightweight-easy-to
store_origin: JP
region: Japan
---

# Real-time short & long-term radon data Portable & lightweight design 3-year battery life Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L

**Brand:** airthings
**Price:** ¥64058
**Availability:** ✅ In Stock

## Summary

> 🏠 Stay ahead of invisible risks with pro-grade radon detection—because your home deserves the best.

## Quick Answers

- **What is this?** Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L by airthings
- **How much does it cost?** ¥64058 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/277321068-airthings-corentium-home-radon-detector-223-portable-lightweight-easy-to)

## Best For

- airthings enthusiasts

## Why This Product

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

## Key Features

- • **Precision You Can Trust:** Professional-grade sensor tech delivers lab-accurate radon readings at home.
- • **Effortless Radon Vigilance:** Battery-powered freedom means no outlet needed—monitor anywhere, anytime.
- • **Built to Last, Calibrate Never:** Over 10 years of reliable use with zero annual calibration hassle.
- • **Instant Insight, Lasting Safety:** On-screen short & long-term averages keep you ahead of fluctuating radon levels.
- • **Smart Reporting at Your Fingertips:** Generate self-inspection radon reports with ease—empower your home safety decisions.

## Overview

The Airthings Corentium Home Radon Detector 223 is a portable, battery-operated device that provides accurate, real-time monitoring of radon gas levels with both short and long-term readings displayed on an easy-to-read LCD. Designed with advanced commercial-grade sensor technology, it requires no annual calibration and offers up to 3 years of battery life, making it an essential tool for homeowners and professionals to ensure a safe indoor environment.

## Description

The Corentium Home by Airthings radon detector is a state-of-the-art measuring instrument that combines ease of use and performance. The Corentium Home by Airthings radon gas detector allows you to take a reading of the radon levels and its LCD screen displays the average daily, weekly and long term concentrations. Powered by 3 standard AAA batteries, the radon monitor makes it easy to take measurements from one room to another in order to get an overview of the concentrations of radon in a home, workplace, school, a daycare centre or any other location. The Corentium Home by Airthings radon detector is also an essential tool to use when performing property inspections or when checking the operation of a radon mitigation system. The internal architecture of the Corentium Home by Airthings radon monitor comes from advanced technology normally reserved for commercial-type detectors. Particular attention has been paid to the quality and protection of the internal components, allowing the use of algorithms for signal analysis that are more sophisticated. The Corentium Home by Airthings radon gas detector quickly adapts to its environment and eliminates inaccuracies related to external factors, allowing it to obtain the best accuracy in its niche. it requires no annual calibrations throughout its useful life, estimated at over 10 years.

Review: I’m very happy with this radon detector. It was specifically recommended to me by a professional radon mitigation specialist, which gave me confidence in the purchase. After mitigation, the professional left his own monitoring device in place for comparison, and the Airthings Corentium tracked very closely to his professional readings. That really reassured me about the accuracy. Setup was quick and easy, and the readings are clear and easy to understand. I appreciate that it provides both short-term and long-term averages, which is important when monitoring radon levels over time. The device feels well made and reliable. If you’re looking for a trustworthy radon monitor that professionals actually recommend, this is a solid choice.
Review: Sin problemas con este detector, sólo hay que leer el instructivo porque no da lecturas hasta después de 1 día. No es un dispositivo que responde instantáneamente a los cambios de concentración de Radón, el método de detección requiere su tiempo y lo que se muestra es un promedio.

## Features

- FIRST OF ITS KIND: The first battery-operated, digital radon detector. Monitor your home without the need for an outlet.
- LONG TERM MONITORING: Monitor for cancer-causing radon gas. Long term monitoring is necessary as radon levels fluctuate daily.
- BE IN CONTROL: Take action if your radon levels are high. Know if your improvements have worked by checking the short term, on-screen readings.
- RADON REPORT: Generate a radon self-inspection report easily, whenever you need it.
- FAST RESULTS: On-screen results show both long and short term readings, for a quick overview of your radon levels.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00H2VOSP8 |
| ASIN  | B00H2VOSP8 |
| Batteries | 1 AA batteries required. (included) |
| Batteries  | 1 AA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Battery life | 3 years |
| Best Sellers Rank | #17,661 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Smoke & Carbon Monoxide Alarms |
| Color | black |
| Customer Reviews | 4.6 4.6 out of 5 stars (10,262) |
| Customer reviews | 4.6 4.6 out of 5 stars (10,262) |
| Date First Available | 1 January 2024 |
| Date First Available  | 1 January 2024 |
| Included components | Radon sensor, 3 AAA batteries |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 99.8 g |
| Item model number | 223 |
| Item model number  | 223 |
| Manufacturer | Airthings |
| Manufacturer  | Airthings |
| Part number | 223 |
| Power source type | Battery Powered |
| Product Dimensions | 11.94 x 6.86 x 2.54 cm; 99.79 g |
| Product Dimensions  | 11.94 x 6.86 x 2.54 cm; 99.79 g |
| Size | 1 Pack |
| Style | Corentium Home Radon |

## Product Details

- **Brand:** Airthings
- **Colour:** black
- **Item weight:** 100 g
- **Power source:** Battery Powered
- **Style:** Corentium Home Radon

## Images

![Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L - Image 1](https://m.media-amazon.com/images/I/71xTKuK7zHL.jpg)

## Questions & Answers

**Q: how often does the tester need to be calibrated and how much does it cost to calibrate**
A: To cut through all of the nit picking and posturing:  This is a home unit, not a lab instrument.  It will give you practical insight, not NIST calibrated precision.  On the other hand, we are talking about a gas whose concentration will ebb and flow.  As a home owner, you want to know is this "no problem" (0 pCi/L), "meh" (2.7<), "hmmm" (4<) or "Holy Marie Curie" (officialy set by NIST as >20).  So if you are a homeowner I think this is fine.  If you are a pro and you are using it as a quick pocket reference before setting up real monitoring, still fine.  If you are Sheldon Cooper, stop being mean to homeowners and go order something NIST traceable, along with a NIST traceable calibration reference so you can re-calibrate every time you use it.  That shouldn't cost much.

**Q: Are we positive the readings are accurate?  I have now tested the first floor of the house and am getting a reading of 7.5 pCi/l.**
A: We have two older (15+ years) Safety Siren meters that read 2.3 & 2.4 for both long and short readings and seem stuck even after a reset/retest in our radon mitigated basement.  The new Airthings 223 started a little over 2.0 and slowly dropped to 1.8. Yesterday I resealed the sump pit covers to the floor and the Airthings 223 1-day average already (<24 hrs.) dropped to 1.43. It seems to correctly reflect variations with short term readings. This could be just coincidental with random variations but I feel that it is reasonably accurate and responsive to changes in the environment. I’m about to buy a second unit to replace our old (tired?) meters.

**Q: what is the shortest amount of time you can do a test with this device? a home inspection last only a few hours..will it have to be left over night?**
A: I own this unit.  My experience is the lower the level of radon, the longer it takes to spit out a short term reading.  Using it on my screened porch, it took 24 hours to show a reading of .54 which is generally understood to be the amount of level naturally occurring in the outdoors.  I had levels of 15 confirmed in my basement via traditional test and this unit gave me an initial reading of 8 in just under and hour and continued to increase every 45 mins until ultimately stopping a 15 in just under a total 0f 12 hours. Since mitigation I have readings of between 1 and 3.5.

**Q: I see there are air holes in the back, so if it is placed against a surface, won't it impede the airflow into the detector?**
A: According to the company's website, the unit should be placed on its back (display facing upwards), on a flat surface, at breathing-level height, and away from windows, doors, air vents, etc.  See https://support.airthings.com/hc/en-us/articles/115003370189-How-do-I-place-my-Home-radon-detector-to-obtain-correct-measurements-

Or as their FAQ answer states:  "You can just lay it flat on a table or a shelf. The air flows into the Radon chamber as usual."  https://support.airthings.com/hc/en-us/articles/115001097069-Can-I-just-lay-the-unit-flat-on-its-back-side-

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***E on 3 January 2026*

I’m very happy with this radon detector. It was specifically recommended to me by a professional radon mitigation specialist, which gave me confidence in the purchase. After mitigation, the professional left his own monitoring device in place for comparison, and the Airthings Corentium tracked very closely to his professional readings. That really reassured me about the accuracy. Setup was quick and easy, and the readings are clear and easy to understand. I appreciate that it provides both short-term and long-term averages, which is important when monitoring radon levels over time. The device feels well made and reliable. If you’re looking for a trustworthy radon monitor that professionals actually recommend, this is a solid choice.

### ⭐⭐⭐⭐⭐ Review
*by L***H on 24 August 2024*

Sin problemas con este detector, sólo hay que leer el instructivo porque no da lecturas hasta después de 1 día. No es un dispositivo que responde instantáneamente a los cambios de concentración de Radón, el método de detección requiere su tiempo y lo que se muestra es un promedio.

### ⭐⭐⭐⭐⭐ Review
*by T***N on 4 October 2023*

I'm really glad to have this device. When we bought our house 15 years earlier, we had done a radon test and found the levels to be low. But within the last few years I'd started using the unfinished basement quite a bit (home gym), and randomly ordered a charcoal radon test off Amazon. It took me a few months before I finally used it, but after getting the results back, I found that our radon levels were above safe limits (~10+ pCi/L). That freaked me out, and I wanted to quick answers, so I bought this Airthings radon detector from Amazon and had it the next day. It confirmed that our levels were higher than they should be. Further, it also revealed our levels were above safe limits even on the floor above the basement. I'm so glad we didn't have to wait for another charcoal test. A few days later, we had a radon system installed that basically sucks the radon out of the ground, underneath the crawlspace and concrete basement floor. This was a year ago and it has been very effective, reducing our radon levels down to a 1-year average of ~1.3 pCi/L. I've found the Airthings device to be quite accurate, nearly matching the 2-week results from an independent test using two Sun Nuclear radon testing devices. I like how quickly I can get results. For instance, I recently found that opening windows on the top level of our house causes radon levels to increase in the basement (to ~3-4 pCi/L), and this happens due to a chimney effect creating negative pressure in the house, causing it to draw more radon out of the ground. I also learned that I could prevent the negative pressure by also opening windows on the lower level of the house. If I didn't have the Airthings device, I would not be able to tell how these kinds of changes affect radon levels. For any kind of test like this, it's important to give it some time (a day or two minimum), as radon levels naturally increase and decrease all the time, so you can only trust longer term averages. And the longer the test, the more accurate the number. The Airthings device doesn't give you minute-by-minute readings for this reason. Instead, it gives you, short term 24-hour, 7-day, and long term averages, which is ideal. I also like how simple this device us, it's foolproof. There's really nothing for you to do other than finding a good place to put it, and reading its screen. There are no buttons (unless you count the tiny reset button on the back, which you may never use). It shows you the 1-day, 7-day and long-term averages by rotating the numbers every few seconds on the screen. The batteries last a really long time. We've been running the device on the original batteries nonstop for over a year, with no sign of slowing down. Lastly, I also like that you can easily test different places in your house, or even different houses (we recently tested my parents house). It would be a pain to do this with charcoal tests. I highly recommend this device, especially if a charcoal test makes you want further testing, and it is well worth the price. I can't think of any downsides and I will never be without one of these devices.

## Frequently Bought Together

- Airthings Corentium Home Radon Detector 223 Portable, Lightweight, Easy-to-Use, (3) AAA Battery Operated, USA Version, pCi/L
- Multiple Purposes Case for Corentium Home Radon Detector by Airthings, for Desktop and Wall-Mounted
- First Alert Radon Gas Test Kit, RD1

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/277321068-airthings-corentium-home-radon-detector-223-portable-lightweight-easy-to](https://www.desertcart.jp/products/277321068-airthings-corentium-home-radon-detector-223-portable-lightweight-easy-to)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-23*