TNCE Tuya Temperature Humidity LCD sensor WIFI or Zigbee Hygrometer Thermometer Monitor Detector Work with Alexa Google Home

Q&A: Q: Does it require an additional gateway?A: If you purchased the WIFI version, it can be directly connected to the app via 2.4Ghz WIFI, and no additional gateway is required;If you purchased the zigbee version, it requires a zigbee gateway to work properly, and this zigbee gateway needs to be purchased separately.Q: Can it view the historical records?A: You can view the temperature records of the year/month/day on the mobile APP.Product Parameters Wireless Mode: 2.4G WiFi / Zigbee 3.0Working voltage: DC 3Vbattery type: AAA*2(not included)Dimensions: 51x51x16.5mm