
About
This app measures and records rising damp in walls by calculating electrical resistance between two points. Readings are transmitted via Bluetooth and stored on your iPhone for easy access and analysis.
What's New in HS
1.3
March 12, 2026
This version is compatible with the new HUMISCAN device. It also includes some internal improvements and is optimized for iOS 26.
User reviews
FAQ
How does HS-221 measure humidity?
HS-221 measures humidity by calculating the electrical resistivity between two screws fixed to a wall. This method helps identify rising damp in the structure.
Does HS-221 require a special device?
Yes, HS-221 requires two screws to be fixed to the wall for measurement. The readings are then sent via Bluetooth to your iPhone.
What devices does HS-221 support?
HS-221 is currently supported on iPhone devices.
How often is HS-221 updated?
The latest version of HS-221 is 1.3, last updated on March 12, 2026. Update frequency information is not available.
What is the age rating for HS-221?
HS-221 has an age rating of 4+, making it suitable for a wide range of users.
Can I export the humidity readings from HS-221?
The description does not specify if readings can be exported. The app stores readings to your iPhone for registration and analysis.
Does HS-221 have ads?
No, HS-221 does not contain advertisements. It is a free application without any ads.
What is the user sentiment for HS-221?
HS-221 has a perfect rating of 5.0 stars from 1 rating, indicating positive user sentiment based on available data.

