Clarity for your home.If your original Corentium Home is working and its displayed averages meet your needs, keeping it is a practical choice. Home 2 becomes more useful when you want graphs, saved measurement history or an additional connection for checking readings away from the property.
This comparison concerns the original US model 223 (Amazon ASIN B00H2VOSP8) and Home 2 model 325 (ASIN B0F84C4ZZM).
The differences that change daily use
| Question | Original Corentium Home | Corentium Home 2 |
|---|---|---|
| What can I read on the device? | One-day, seven-day and long-term radon averages | 24-hour, seven-day, 30-day and cumulative or one-year radon averages; temperature and humidity |
| What powers it? | Three AAA alkaline batteries | Two AA alkaline batteries |
| Can I browse synchronized historical graphs? | Read and record averages on the device | Yes, through the Airthings app |
| How do I preserve an offline measurement? | Record it before resetting or changing batteries | Record it before a new measurement or battery removal; alternatively sync first |
| Can I check new readings off-site? | Local display workflow | Requires a compatible Airthings hub arrangement |
The original's manual, US section describes its averages and physical controls. Its USB port is reserved for manufacturer service. The Home 2 manual documents the additional measurements and connection options.
Saved history and export
Seeing a long-term number answers a different question from reopening a graph for an earlier period. Airthings documents historical graphs and dashboard CSV export for connected Home 2 use. Its offline data becomes inaccessible when a new measurement starts or batteries are removed. Offline and connected comparison.
Choose the upgrade when you’ll use that archive. If you regularly move the monitor between rooms and need to revisit each completed period, synchronized history can remove some manual record-keeping. For occasional screen checks in one location, that benefit may be smaller.
Remote access adds another purchasing decision
Home 2 uses an additional hub arrangement for off-site access. Airthings documents SmartLink through a dedicated Hub or a View monitor with its hub activated by plug-in power. Compare that entire setup with View Plus before buying extra hardware. Home 2 hub instructions.
Check the model, then the evidence
The original specifications identify US model 223. The Home 2 product sheet identifies model 325 and US/Europe SKU 3250. The checked Amazon export places these ASINs under the same parent listing. Select model 223 or 325 explicitly in the current offer.
Keep a functioning original if its screen checks fit your purpose. Choose Home 2 if saved history or its added measurements solve a specific problem; compare the complete remote arrangement if access from elsewhere is the reason for changing.
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Documentation used
- Airthings — Original Corentium Home specifications (US model 223)Manufacturer specifications · checked 2026-10-12
- Airthings — Original Corentium Home manual v4.3, US sectionManufacturer instructions; includes US version · checked 2026-10-12
- Airthings — Corentium Home 2 user manual v1 (June 2025)Manufacturer instructions · checked 2026-10-12
- Airthings — Corentium Home 2 product sheet, version C (June 2025)Manufacturer specifications; model and SKU identification · checked 2026-10-12
- Airthings — Home 2 offline or connectedManufacturer instructions · checked 2026-10-12
- Airthings — Home 2 SmartLink connectionManufacturer instructions · checked 2026-10-12