X-Sense Radon Detector for Home with LCD, Battery Powered, White | Easy to Use, Zero Lab Fees, No Installation Required, Continuous Monitoring, in pCi/L or Bq/m³, XR0A-SR

GoveeLife Upgraded Smart Water Leak Detector 1s with High Alarm, 3 Pack | 1804ft Ultra-Long Range, WiFi Water Sensor with SMS/Email/APP Push, 5Yr Battery Life,IP67, Suit for Home, Basement, Kitchen View on Amazon