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 alarms: Receive phone notifications when preset thresholds are exceeded - Voice control support: Compatible with Alexa-enabled devices for voice queries of indoor temperature and humidity - Temperature unit switch: Switch between Celsius and Fahrenheit in settings; press the reset button once to apply - Smart home integration: Connects via Wi-Fi to work with other smart home devices for improved climate control and comfort - Multiple mounting options: Can be placed on a flat surface or wall-mounted using adhesive Package Includes: 1 x Temperature and Humidity Sensor (3 sensors not included)