Temperature measurement range: -10-60 (C) Humidity measurement accuracy: 5% (RH) Temperature measurement accuracy: 0.5 (C) Humidity measurement range: 0% RH~99% (RH) APPcozylife Features High temperature and low temperature alarm: Once the set temperature value is exceeded, the phone will prompt an alarm voice controlWorks with Third-Party Smart Speake Support inquiring the indoor temperature and humidity via voice commands through Alexa speaker. Temperature Unit SwitchYou can switch temperature unit between Celsius and Fahrenheit in the set, then press the reset button once, temperature unit will switch. Intelligent linkageThe WiFi temperature and humidity sensor can be linked with other smart devices in the house to improve the indoor heating and cooling, and make your home more comfortable. Multiple installation methods: can be placed directly on the table or glued to the wall. Without a data cable, it's more convenient and beautiful