Temperature measurement range: -10C to 60C Humidity measurement accuracy: 5% RH Temperature measurement accuracy: 0.5C Humidity measurement range: 0% RH to 99% RH Features: High and low temperature alarm: When the set temperature threshold is exceeded, an alert will be sent to your phone. Voice control: Compatible with third-party smart speakers. Supports checking indoor temperature and humidity via voice commands using Alexa-enabled devices. Temperature unit switch: Switch between Celsius and Fahrenheit in settings, then press the reset button once to apply the change. Smart integration: The WiFi temperature and humidity sensor can be connected with other smart home devices to optimize heating and cooling for improved comfort. Multiple mounting options: Can be placed on a flat surface or mounted on a wall. No data cable required, offering greater convenience and cleaner appearance. Package Included: 3 x Sensors