1. Temperature and humidity monitoring: can accurately monitor indoor temperature and humidity in real time to help you understand environmental changes 2. LED digital display, with comfortable emoticons, allows you to easily obtain current environmental information 3. Remote monitoring: No matter where you are, you can remotely monitor indoor temperature and humidity through the App to the comfort of your home or office 4. Intelligent automation: Link with other smart devices, such as smart thermostats or smart air conditioners, to achieve intelligent automation 5. Temperature and humidity records: You can view the temperature and humidity history curves in the application and export them to your email address Screen: LCD Operating voltage: 3V Battery type: CR2032 Standby current: ≤20uA Wireless protocol: Zigbee3.0 Comfort indicator: Support Temperature measurement accuracy: ±0.3℃ Humidity measurement accuracy: ±6% Sensor detection frequency: 30s Operating temperature: -9.9-60℃ Operating humidity: 0%-99%RH (The product appearance and printed words depending on the batch, but this does not affect use) Color: White Material: plastic Package Contents: 1 * Temperature and Humidity Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.