Airthings Wave Smart Radon Detector with free app, battery operated

For every home: a battery-powered, smart radon detector which monitors radon gas all year round and integrates seamlessly with every home
Continuous monitoring: radon gas fluctuates daily. Access your radon levels in real-time to take control, make changes and reduce potential Health effects
Quick and clear results: connect via Bluetooth to the Air things app or log in to the Air things dashboard online for detailed insights into your air
Reliable radon results: an accurate and reliable radon detector for every home, office and building with extra humidity and temperature sensors as standard
Easy to understand: simply Wave in front of the device to receive a colour-coded visual indicator of the overall air quality; green (low), yellow (warning), Red (Danger)
No lab Fees: get both long and short term radon results straight to your smartphone and easily generate a radon report through the Air things dashboard
Smart Home Integaration: create custom alerts or integrate with other smart home Products such as Alexa, Google Assistant and IFTTT (if this then that)