INTUITIVE APP CONTROL: Easily monitor temperatureand humidity data on your phone with our Govee Home app using Bluetooth (download from App Store & Google Play). 164ft connecting range (no obstacles) lets you check temp & humidity remotely from almost anywhere. (Not WiFi Version) HIGHLY ACCURATE MEASUREMENTS: Our temperature humidity monitor has a built-in, high-quality Swiss-made sensor (Sensiron) that provides extremely accurate readings within a deviation of �0.54? and �3% RH. Get precise, reliable data every time SMART ALERT NOTIFICATIONS: Instantly receive alert notifications to your phone once the temp & humidity levels go out of your preset range. Intelligent function allows you to easily adjust the environment in your wine cellar, greenhouse, or other places in no time COMPACT SIZE WITH LARGE NUMBERS: Small, portable size and large digits make this thermometer hygrometer very easy to read and be easily placed in multiple locations such as your baby room, greenhouse, humidor, cellar, and incubator. Compact size saves you space WHAT'S INCLUDED & MONEY-BACK GUARANTEE: 2 x Govee Thermometer and Hygrometer, 2 x Adhesive and 2 x User Manual. Govee offers a 30-day money-back guarantee and a 365-day warranty for any quality-related issues