VETOUCH Plug-in CO2 Detector, 3-in-1 Carbon Dioxide Monitor with Temperature & Humidity, Manual Calibration, CO2 Alarm Function, Ideal for Home, Office, School, and Gym, Real-time Monitoring-1Pack

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